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Matter is anything that has mass and occupies space. There are three main types of matter based on physical state: solids, liquids, and gases. Matter can also be classified as pure substances or mixtures.
A pure substance contains only one type of atom or molecule and has uniform composition and predictable properties like melting/boiling points. Elements are pure substances made of only one type of atom, while compounds are made of two or more elements chemically bonded together. Mixtures contain two or more substances mixed but not chemically combined, and can be either homogeneous like solutions, or heterogeneous like suspensions.
The document then discusses various pure substances and mixtures in more detail, including their properties and examples. It also explains
This document discusses acids, bases, and salts. It defines acids as substances that produce hydrogen ions (H+) in aqueous solution, making them sour and able to turn litmus red. Bases are defined as substances that produce hydroxide ions (OH-) in solution, making them soapy and able to turn litmus blue. Salts are formed by the reaction of acids and bases and can be acidic, basic, or neutral depending on the reactants. Common natural and synthetic acid-base indicators are also described. The document then discusses the properties and reactions of acids, bases, and salts and how pH is used to measure acidity. Finally, several industrial chemicals derived from sodium chloride (common salt) are summarized, including
Chapter - 2, Is matter around us pure?, Science, Class 9Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 2, Is matter around us pure?, Science, Class 9
PURE SUBSTANCES
WHAT IS A MIXTURE?
HOMOGENEOUS MIXTURE
HETEROGENEOUS MIXTURE
DIFFERENCE BETWEEN MIXTURES AND COMPOUNDS
SOLUTION
PROPERTIES OF SOLUTION
DIFFERENT TYPES OF SOLUTIONS
CONCENTRATION
SUSPENSION
COLLOIDAL SOLUTION
PROPERTIES OF COLLOIDS
TYNDALL EFFECT
COMPONENTS OF COLLOID
SEPARATING THE COMPONENTS OF A MIXTURE
PHYSICAL CHANGE
CHEMICAL CHANGE
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
This document discusses the classification and properties of pure substances and mixtures. It defines pure substances as elements or compounds that consist of a single type of matter, while mixtures contain two or more pure substances mixed together. Mixtures are classified as either homogeneous, containing substances mixed uniformly, or heterogeneous, containing visible particles that can be separated. The document also discusses various techniques for separating components of mixtures like evaporation, centrifugation, distillation and crystallization.
Carbon is found in many forms including diamond, graphite and fullerenes. It forms the basis of all known life and is present in many fuels. Carbon has 4 valence electrons and forms covalent bonds by sharing electrons with other atoms. This allows carbon to form chains, branches and rings, resulting in over 3 million known carbon compounds. Key properties of carbon include catenation, isomerism, and the ability to form various functional groups that determine a compound's properties. Important carbon compounds include ethanol, ethanoic acid and soaps.
This document provides an overview of matter and its properties. It discusses the following key points:
1) Matter is anything that occupies space and has mass. It can be classified based on physical state (solid, liquid, gas), chemical composition (pure substances and mixtures), and early Indian philosophies (five basic elements).
2) Matter is made up of very tiny particles that are in continuous motion, have space between them, and attract each other.
3) The three states of matter are solids, liquids, and gases, which differ in their properties like shape, volume, particle movement and attraction. Matter can change states through processes like melting, boiling, sublimation, and evaporation with the
This document discusses the physical and chemical properties of metals and non-metals. It describes how metals react with oxygen, water, acids and metal salt solutions. Metals are listed in a reactivity series from most reactive to least reactive. The document outlines how ionic compounds form and their properties. The extraction, refining and corrosion of metals is summarized along with methods for preventing corrosion.
hello friends this is dattatreya and team.so we all did research on the 2nd chapter of chemistry that is "is matter around us pure so hope you like it and please download it....
Matter is anything that has mass and occupies space. There are three main types of matter based on physical state: solids, liquids, and gases. Matter can also be classified as pure substances or mixtures.
A pure substance contains only one type of atom or molecule and has uniform composition and predictable properties like melting/boiling points. Elements are pure substances made of only one type of atom, while compounds are made of two or more elements chemically bonded together. Mixtures contain two or more substances mixed but not chemically combined, and can be either homogeneous like solutions, or heterogeneous like suspensions.
The document then discusses various pure substances and mixtures in more detail, including their properties and examples. It also explains
This document discusses acids, bases, and salts. It defines acids as substances that produce hydrogen ions (H+) in aqueous solution, making them sour and able to turn litmus red. Bases are defined as substances that produce hydroxide ions (OH-) in solution, making them soapy and able to turn litmus blue. Salts are formed by the reaction of acids and bases and can be acidic, basic, or neutral depending on the reactants. Common natural and synthetic acid-base indicators are also described. The document then discusses the properties and reactions of acids, bases, and salts and how pH is used to measure acidity. Finally, several industrial chemicals derived from sodium chloride (common salt) are summarized, including
Chapter - 2, Is matter around us pure?, Science, Class 9Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 2, Is matter around us pure?, Science, Class 9
PURE SUBSTANCES
WHAT IS A MIXTURE?
HOMOGENEOUS MIXTURE
HETEROGENEOUS MIXTURE
DIFFERENCE BETWEEN MIXTURES AND COMPOUNDS
SOLUTION
PROPERTIES OF SOLUTION
DIFFERENT TYPES OF SOLUTIONS
CONCENTRATION
SUSPENSION
COLLOIDAL SOLUTION
PROPERTIES OF COLLOIDS
TYNDALL EFFECT
COMPONENTS OF COLLOID
SEPARATING THE COMPONENTS OF A MIXTURE
PHYSICAL CHANGE
CHEMICAL CHANGE
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
This document discusses the classification and properties of pure substances and mixtures. It defines pure substances as elements or compounds that consist of a single type of matter, while mixtures contain two or more pure substances mixed together. Mixtures are classified as either homogeneous, containing substances mixed uniformly, or heterogeneous, containing visible particles that can be separated. The document also discusses various techniques for separating components of mixtures like evaporation, centrifugation, distillation and crystallization.
Carbon is found in many forms including diamond, graphite and fullerenes. It forms the basis of all known life and is present in many fuels. Carbon has 4 valence electrons and forms covalent bonds by sharing electrons with other atoms. This allows carbon to form chains, branches and rings, resulting in over 3 million known carbon compounds. Key properties of carbon include catenation, isomerism, and the ability to form various functional groups that determine a compound's properties. Important carbon compounds include ethanol, ethanoic acid and soaps.
This document provides an overview of matter and its properties. It discusses the following key points:
1) Matter is anything that occupies space and has mass. It can be classified based on physical state (solid, liquid, gas), chemical composition (pure substances and mixtures), and early Indian philosophies (five basic elements).
2) Matter is made up of very tiny particles that are in continuous motion, have space between them, and attract each other.
3) The three states of matter are solids, liquids, and gases, which differ in their properties like shape, volume, particle movement and attraction. Matter can change states through processes like melting, boiling, sublimation, and evaporation with the
This document discusses the physical and chemical properties of metals and non-metals. It describes how metals react with oxygen, water, acids and metal salt solutions. Metals are listed in a reactivity series from most reactive to least reactive. The document outlines how ionic compounds form and their properties. The extraction, refining and corrosion of metals is summarized along with methods for preventing corrosion.
hello friends this is dattatreya and team.so we all did research on the 2nd chapter of chemistry that is "is matter around us pure so hope you like it and please download it....
PowerPoint Presentation on the topic - 'Acids, Bases and Salts'. For Class - 10th.
Created By - 'Neha Rohtagi'
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
This document provides information about matter and its different states. It acknowledges the sources used to create the presentation, which includes class notes, textbooks, and internet resources. The presentation is intended for students and not commercial use. It defines matter and describes its particulate nature and characteristics. It discusses the three common states of matter - solid, liquid, and gas - and how matter can change states through processes like melting, evaporation, and boiling depending on temperature. It concludes with some multiple choice questions about these topics and concepts.
The Fundamental Unit Of Life Class 9th By ADHWEAT GUPTAAdhweat Gupta
The document discusses the basic unit of life - the cell. It describes that cells can be either prokaryotic or eukaryotic. The key components of a typical cell are the cell membrane, cell wall, cytoplasm and nucleus. The nucleus contains the cell's genetic material in the form of chromosomes and controls cell activities. The discovery of cells is also summarized, noting that Robert Hooke first observed cells in 1665 and Leeuwenhoek later studied living cells under a microscope.
Ncert class 10 - science - chapter 3 - metals and non-metalsEswariKumaravel
The document discusses the properties of metals and non-metals. It describes how metals are lustrous, malleable, ductile, and good conductors of heat and electricity, while non-metals lack these properties. Experiments are presented to demonstrate that metals are lustrous, hard except for a few, malleable by hammering into thin sheets, and ductile by pulling into wires. Other experiments show that metals conduct heat by melting wax and conduct electricity by lighting a bulb. The document contrasts how metals and non-metals react with oxygen, water, acids, and how metals react in salt solutions in displacement reactions.
This document outlines key concepts about acids, bases, and salts. It defines acids as substances that produce hydrogen ions in water. There are strong acids that fully ionize and weak acids that partially ionize. Bases are oxides or hydroxides of metals. Alkalis are soluble bases that produce hydroxide ions in water. Acids and bases react to form salts and water in a neutralization reaction. The pH scale measures acidity and alkalinity. Indicators change color with pH. There are four types of oxides. Salts contain cations from bases and anions from acids. Common salts have various industrial and domestic uses.
CBSE Class 9 Science Chapter-1 Matter in our surroundingsAarthiSam
This document discusses the nature of matter and its different states. It begins by defining matter as anything that has mass and occupies space. It then describes the particulate nature of matter and how particles are in continuous motion and attract each other. The three common states of matter are identified as solids, liquids, and gases. A variety of experiments are presented to demonstrate the properties of each state, as well as how matter can change between states through processes like evaporation and condensation.
Best PowerPoint presentation on NCERT class 9 Atoms and Molecules as per CBSE syllabus it covers full chapter with all information.
By Raxit Gupta
9C
KENDRIYA VIDYALAYA BALLYGUNGE
The document discusses metals and non-metals. It describes the physical and chemical properties of metals and non-metals. Metals are lustrous, malleable, ductile and are good conductors of heat and electricity, while non-metals have opposite properties. It also discusses how metals and non-metals react with oxygen, water, acids and how displacement reactions can be used to determine reactivity order. Metals are extracted from ores through processes like enrichment, extraction using chemical/electrochemical methods depending on their reactivity.
Reproduction in animal for class 8th by Sarita ChourasiaSaritaChourasia
This document summarizes reproduction in living organisms. It defines reproduction as the process by which organisms produce more of their own kind. There are two main types of reproduction: asexual reproduction, which involves one parent and produces offspring that are clones; and sexual reproduction, which involves two parents mixing their genetic material to produce unique offspring. The document then describes and compares the key aspects of asexual and sexual reproduction. It also outlines the stages of sexual reproduction in humans, including fertilization, zygote development, and childbirth. Finally, it provides an overview of metamorphosis in frogs from egg to tadpole to adult.
ACID,BASES AND SALT for Class 10th....CREATED TO PIYUSH BHANDARIPiyush Bhandaari
This document is a student's presentation on acids and bases. It defines acids as substances that produce hydrogen ions in water, and bases as substances that produce hydroxide ions in water. It discusses the properties of acids and bases, including their tastes and how they feel. Common examples of acids and bases are provided. Indicators, pH, strong vs. weak acids and bases, and neutralization reactions are also explained.
This document provides an overview of matter and its different states. It discusses that matter is made up of particles that are continuously moving, have space between them, and attract each other. The three main states of matter are solids, liquids, and gases, which are determined by the characteristics of the particles. Changes in temperature and pressure can cause matter to change states through processes like melting, boiling, sublimation, and deposition. Evaporation is also explained as the process where liquid particles at the surface gain energy and change to vapor without reaching the boiling point. In summary, the document covers the basic physical properties and behavior of different forms of matter.
Heinrich Hertz's document discusses sound, including its production, propagation through a medium like air, and characteristics as a mechanical wave. It describes experiments showing sound's reflection, reverberation, and need for a medium using a bell jar. The document also covers infrasonic and ultrasonic sounds, uses of ultrasound like SONAR, and the range of human hearing.
The Fundamental Unit Of Life Class - 9NehaRohtagi1
This PowerPoint Presentation will help the students of Class - 9 to understand that How a Cell Divides and the Organization Of Nucleas and so on. This Slide Presentation will clear your doubts and help you to score good marks in the examinations.
This document provides an overview of matter and its properties according to the ICSE curriculum for upper primary classes. It defines matter as anything that occupies space, has mass and volume, and can be sensed. All matter is composed of molecules, which are made up of atoms. Matter can exist in three states - solid, liquid, and gas - depending on the strength of intermolecular forces and the distance between molecules. Changes in state, such as melting, boiling, and sublimation, occur when matter gains or loses heat. Heating matter can also cause chemical changes in addition to physical changes like expansion and changes in state.
CBSE Class 9 Science Chapter 4- structure of atomAarthiSam
This document discusses the structure of atoms and the development of atomic models over time. It covers John Dalton's early atomic theory that atoms are indivisible and different for each element. J.J. Thomson's plum pudding model described atoms as electrically neutral spheres. Rutherford determined atoms have a small, dense nucleus through alpha particle scattering experiments. Niels Bohr incorporated quantum theory, proposing electrons orbit in discrete energy levels. The document also discusses atomic number, mass number, isotopes, electron configuration, and valency.
Hello readers,
This PPT is about the chapter:- Tissue which is in science class IX
Question Are In The Book Of NCERT
I Hope this will help You...
Thanks....
CBSE Class 8 Science _Metals and non metalschandkec
- The document discusses substances found in nature which can be categorized as natural or artificial/man-made substances. Natural substances such as coal and petroleum are further divided into metals and non-metals. Artificial substances are those made by humans like chairs and tables.
- The document then discusses atoms, elements, and molecules. Atoms are made up of electrons, protons, and neutrons. Valence electrons determine how atoms bond together. Metals and non-metals are introduced along with their properties. Corrosion of metals is discussed along with methods to prevent corrosion like painting, greasing, and electroplating.
- A mixture contains two or more pure substances that are mixed but not chemically combined. Mixtures can be homogeneous, with a uniform composition throughout, or heterogeneous, with a non-uniform composition.
- Common types of mixtures include solutions, suspensions, and colloidal solutions. Solutions are homogeneous mixtures where one substance dissolves in another. Suspensions are heterogeneous mixtures where one substance is suspended throughout another but does not dissolve. Colloidal solutions are heterogeneous but appear homogeneous, with one substance dispersed throughout another in small, suspended particles.
- The components of a mixture can often be separated using differences in their properties, such as differences in boiling points, densities, or whether they are miscible with each other
This document discusses the differences between pure substances, mixtures, and the various types of mixtures. It defines pure substances as homogeneous materials with a definite chemical composition, while mixtures contain two or more substances mixed together. Solutions are homogeneous mixtures whose composition can vary, while suspensions and colloids are heterogeneous mixtures. Several methods for separating mixtures like evaporation, centrifugation, and chromatography are also summarized.
PowerPoint Presentation on the topic - 'Acids, Bases and Salts'. For Class - 10th.
Created By - 'Neha Rohtagi'
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
This document provides information about matter and its different states. It acknowledges the sources used to create the presentation, which includes class notes, textbooks, and internet resources. The presentation is intended for students and not commercial use. It defines matter and describes its particulate nature and characteristics. It discusses the three common states of matter - solid, liquid, and gas - and how matter can change states through processes like melting, evaporation, and boiling depending on temperature. It concludes with some multiple choice questions about these topics and concepts.
The Fundamental Unit Of Life Class 9th By ADHWEAT GUPTAAdhweat Gupta
The document discusses the basic unit of life - the cell. It describes that cells can be either prokaryotic or eukaryotic. The key components of a typical cell are the cell membrane, cell wall, cytoplasm and nucleus. The nucleus contains the cell's genetic material in the form of chromosomes and controls cell activities. The discovery of cells is also summarized, noting that Robert Hooke first observed cells in 1665 and Leeuwenhoek later studied living cells under a microscope.
Ncert class 10 - science - chapter 3 - metals and non-metalsEswariKumaravel
The document discusses the properties of metals and non-metals. It describes how metals are lustrous, malleable, ductile, and good conductors of heat and electricity, while non-metals lack these properties. Experiments are presented to demonstrate that metals are lustrous, hard except for a few, malleable by hammering into thin sheets, and ductile by pulling into wires. Other experiments show that metals conduct heat by melting wax and conduct electricity by lighting a bulb. The document contrasts how metals and non-metals react with oxygen, water, acids, and how metals react in salt solutions in displacement reactions.
This document outlines key concepts about acids, bases, and salts. It defines acids as substances that produce hydrogen ions in water. There are strong acids that fully ionize and weak acids that partially ionize. Bases are oxides or hydroxides of metals. Alkalis are soluble bases that produce hydroxide ions in water. Acids and bases react to form salts and water in a neutralization reaction. The pH scale measures acidity and alkalinity. Indicators change color with pH. There are four types of oxides. Salts contain cations from bases and anions from acids. Common salts have various industrial and domestic uses.
CBSE Class 9 Science Chapter-1 Matter in our surroundingsAarthiSam
This document discusses the nature of matter and its different states. It begins by defining matter as anything that has mass and occupies space. It then describes the particulate nature of matter and how particles are in continuous motion and attract each other. The three common states of matter are identified as solids, liquids, and gases. A variety of experiments are presented to demonstrate the properties of each state, as well as how matter can change between states through processes like evaporation and condensation.
Best PowerPoint presentation on NCERT class 9 Atoms and Molecules as per CBSE syllabus it covers full chapter with all information.
By Raxit Gupta
9C
KENDRIYA VIDYALAYA BALLYGUNGE
The document discusses metals and non-metals. It describes the physical and chemical properties of metals and non-metals. Metals are lustrous, malleable, ductile and are good conductors of heat and electricity, while non-metals have opposite properties. It also discusses how metals and non-metals react with oxygen, water, acids and how displacement reactions can be used to determine reactivity order. Metals are extracted from ores through processes like enrichment, extraction using chemical/electrochemical methods depending on their reactivity.
Reproduction in animal for class 8th by Sarita ChourasiaSaritaChourasia
This document summarizes reproduction in living organisms. It defines reproduction as the process by which organisms produce more of their own kind. There are two main types of reproduction: asexual reproduction, which involves one parent and produces offspring that are clones; and sexual reproduction, which involves two parents mixing their genetic material to produce unique offspring. The document then describes and compares the key aspects of asexual and sexual reproduction. It also outlines the stages of sexual reproduction in humans, including fertilization, zygote development, and childbirth. Finally, it provides an overview of metamorphosis in frogs from egg to tadpole to adult.
ACID,BASES AND SALT for Class 10th....CREATED TO PIYUSH BHANDARIPiyush Bhandaari
This document is a student's presentation on acids and bases. It defines acids as substances that produce hydrogen ions in water, and bases as substances that produce hydroxide ions in water. It discusses the properties of acids and bases, including their tastes and how they feel. Common examples of acids and bases are provided. Indicators, pH, strong vs. weak acids and bases, and neutralization reactions are also explained.
This document provides an overview of matter and its different states. It discusses that matter is made up of particles that are continuously moving, have space between them, and attract each other. The three main states of matter are solids, liquids, and gases, which are determined by the characteristics of the particles. Changes in temperature and pressure can cause matter to change states through processes like melting, boiling, sublimation, and deposition. Evaporation is also explained as the process where liquid particles at the surface gain energy and change to vapor without reaching the boiling point. In summary, the document covers the basic physical properties and behavior of different forms of matter.
Heinrich Hertz's document discusses sound, including its production, propagation through a medium like air, and characteristics as a mechanical wave. It describes experiments showing sound's reflection, reverberation, and need for a medium using a bell jar. The document also covers infrasonic and ultrasonic sounds, uses of ultrasound like SONAR, and the range of human hearing.
The Fundamental Unit Of Life Class - 9NehaRohtagi1
This PowerPoint Presentation will help the students of Class - 9 to understand that How a Cell Divides and the Organization Of Nucleas and so on. This Slide Presentation will clear your doubts and help you to score good marks in the examinations.
This document provides an overview of matter and its properties according to the ICSE curriculum for upper primary classes. It defines matter as anything that occupies space, has mass and volume, and can be sensed. All matter is composed of molecules, which are made up of atoms. Matter can exist in three states - solid, liquid, and gas - depending on the strength of intermolecular forces and the distance between molecules. Changes in state, such as melting, boiling, and sublimation, occur when matter gains or loses heat. Heating matter can also cause chemical changes in addition to physical changes like expansion and changes in state.
CBSE Class 9 Science Chapter 4- structure of atomAarthiSam
This document discusses the structure of atoms and the development of atomic models over time. It covers John Dalton's early atomic theory that atoms are indivisible and different for each element. J.J. Thomson's plum pudding model described atoms as electrically neutral spheres. Rutherford determined atoms have a small, dense nucleus through alpha particle scattering experiments. Niels Bohr incorporated quantum theory, proposing electrons orbit in discrete energy levels. The document also discusses atomic number, mass number, isotopes, electron configuration, and valency.
Hello readers,
This PPT is about the chapter:- Tissue which is in science class IX
Question Are In The Book Of NCERT
I Hope this will help You...
Thanks....
CBSE Class 8 Science _Metals and non metalschandkec
- The document discusses substances found in nature which can be categorized as natural or artificial/man-made substances. Natural substances such as coal and petroleum are further divided into metals and non-metals. Artificial substances are those made by humans like chairs and tables.
- The document then discusses atoms, elements, and molecules. Atoms are made up of electrons, protons, and neutrons. Valence electrons determine how atoms bond together. Metals and non-metals are introduced along with their properties. Corrosion of metals is discussed along with methods to prevent corrosion like painting, greasing, and electroplating.
- A mixture contains two or more pure substances that are mixed but not chemically combined. Mixtures can be homogeneous, with a uniform composition throughout, or heterogeneous, with a non-uniform composition.
- Common types of mixtures include solutions, suspensions, and colloidal solutions. Solutions are homogeneous mixtures where one substance dissolves in another. Suspensions are heterogeneous mixtures where one substance is suspended throughout another but does not dissolve. Colloidal solutions are heterogeneous but appear homogeneous, with one substance dispersed throughout another in small, suspended particles.
- The components of a mixture can often be separated using differences in their properties, such as differences in boiling points, densities, or whether they are miscible with each other
This document discusses the differences between pure substances, mixtures, and the various types of mixtures. It defines pure substances as homogeneous materials with a definite chemical composition, while mixtures contain two or more substances mixed together. Solutions are homogeneous mixtures whose composition can vary, while suspensions and colloids are heterogeneous mixtures. Several methods for separating mixtures like evaporation, centrifugation, and chromatography are also summarized.
Class 9th Chapter 2 Is matter around us pure-1.pptxMVHerwadkarschool
This document discusses the composition and properties of different types of mixtures, including pure substances, solutions, suspensions, and colloids. It explains that mixtures are composed of two or more pure substances, and describes various physical separation methods that can be used to separate the components of mixtures, such as evaporation, filtration, centrifugation, chromatography, distillation, sublimation, and crystallization. Common examples of mixtures and applications of different separation techniques are provided.
The document discusses the classification and properties of pure substances and mixtures. It defines a pure substance as having a definite and invariable composition, while an impure substance is a mixture of elements or compounds. Mixtures are heterogeneous combinations whose components can be separated using physical processes. The document describes various types of mixtures like solutions, suspensions, and colloids, providing examples of each. It also discusses methods to separate components of different mixtures.
Simple techniques of separating mixturesAnand Kumar
This document provides information on techniques for separating mixtures. It discusses several methods including sedimentation and decantation, filtration, evaporation, distillation, crystallization, sublimation, chromatography, centrifugation and solvent extraction. The document is intended for a 9th grade science class and aims to teach students how to select the appropriate separation method based on the components of a mixture. It includes links to videos demonstrating each technique.
Simple techniques of separating mixturesAnand Kumar
1) The document discusses various techniques for separating mixtures, including sedimentation, filtration, evaporation, distillation, crystallization, sublimation, chromatography, and solvent extraction.
2) These techniques allow students to separate mixtures based on differences in properties of the components such as solubility, boiling point, and polarity.
3) The lesson explains key terms and shows examples of separating mixtures of substances like sand and water, sulfur and water, salt and chalk using different techniques.
The document provides information about recrystallization, including definitions, types of impurities, and the recrystallization process. It describes recrystallization as a method to purify organic compounds that are solids at room temperature by removing impurities. The key steps involve choosing a solvent based on solubility tests, dissolving the compound in hot solvent, slowly cooling the solution to form crystals of the pure compound, filtering and drying the crystals. Common solvents used in recrystallization are water, ethanol, methanol, hexanes and toluene. Care must be taken to use minimum amounts of hot and cold solvent to avoid losing product. The document also gives procedures for purifying phthalic acid and an unknown
Separation and purification, chromatographyAnup Dixit
This presentation is based on the Cambridge IGCSE Chemistry syllabus but is helpful for all. It covers various separation techniques such as filtration, crystallization, chromatography and many more. It explains all concepts. Advanced topics are also covered such as separation of colorless substances and using retention factor.
Pure substances are made of only one type of atom or molecule, and can be elements or compounds. Mixtures contain two or more substances mixed but not chemically combined. Mixtures can be homogeneous, containing a uniform composition, or heterogeneous, where the composition varies. Separation techniques like filtration, evaporation, distillation, and decantation are used to separate mixtures based on differences in their physical properties.
1. Fluids are substances that have no fixed shape and can flow, including liquids and gases. Fluids are found in many technologies and natural processes.
2. Fluids help with transporting materials like oil sands in slurries, processing materials like melting sand into glass, and holding other materials like ingredients in toothpaste.
3. Fluid properties like viscosity, density, and compressibility determine how fluids behave and can be used. Understanding these properties allows for developing new fluid technologies.
The document discusses different methods for separating substances that are mixed together. It provides examples of separation that occur in everyday life, such as removing tea leaves from tea or stones from rice. The key methods discussed include hand picking, threshing, winnowing, sieving, evaporation, sedimentation, decantation and filtration. Each method utilizes differences in properties between the components, like size, weight or solubility, to separate them. Often multiple techniques must be combined to fully separate substances within a mixture.
This document discusses different methods of separating substances that are mixed together. It provides examples of separation techniques used in everyday life, such as straining tea leaves from tea or removing stones from rice. The key methods of separation described are hand picking, threshing, winnowing, sieving, evaporation, sedimentation, decantation and filtration. Often multiple techniques must be used together to separate substances that have similar properties. For instance, to separate a mixture of salt and sand, one would use decantation to separate the salt solution from the sand, and then evaporation and condensation to separate the salt from the water.
1. The document discusses aqueous solutions and their properties. It defines solvation as the process where solvent particles surround solute particles to form a solution.
2. For ionic compounds, solvation occurs through hydration where water molecules surround the ions. For covalent compounds, solvation involves the formation of hydrogen bonds between the solute and water molecules.
3. Factors that affect the rate of solvation include agitation, surface area, and temperature. Increasing agitation and surface area as well as raising or lowering the temperature can increase or decrease the rate of solvation.
1. A mixture is a combination of two or more substances that are not chemically combined and where each substance retains its own chemical properties.
2. There are three main types of mixtures: homogeneous mixtures, heterogeneous mixtures, and colloids. Homogeneous mixtures are uniform throughout while heterogeneous mixtures have visually distinct components.
3. Important homogeneous mixtures include solutions, where a solute is evenly dissolved in a solvent, and alloys, which are solid solutions of metals. Heterogeneous mixtures include suspensions, where a liquid contains large undissolved particles.
Types of solutions homogeneous and colloidal and emulsion .pptxChromosomeFanar
This document discusses different types of solutions including homogeneous solutions, colloidal solutions, and emulsions. Homogeneous solutions are uniformly mixed on a microscopic scale and will pass through a filter. Colloidal solutions are heterogeneous mixtures with particle sizes between 1-1000 nm that scatter light but do not separate upon standing. Emulsions are mixtures of two immiscible liquids, either oil in water or water in oil, and require an emulsifying agent to stabilize the mixture.
The document discusses various methods of purifying substances, including filtration, crystallization, and evaporation. It provides details on the principles and procedures of these purification techniques. Filtration is used to separate insoluble solids from liquids or solutions. Crystallization produces pure solids from solutions and is used if the solid decomposes upon strong heating. Evaporation removes the solvent from a solution, leaving behind the pure solid, and is used if the solid does not decompose with heat.
Rinse out the 250 mL flasks that you used to dilute the concentrated acid and base solutions. Weigh out 0.7 to 0.9 g of KHP (pictured below) into a 250 mL flask and dissolve it in 50 mL of distilled water. Add three drops of the phenolphthalein indicator in the flask (see below). Then place the flask under the base buret and start the titration
RELATIVE RATES OF COMPETING REACTIONS
Chemical behavior is a matter of relative rates of competing reactions.
The competing reaction which occurs the fastest, predominates (makes more product than the other competing reactions).
The predominate reaction is usually the reaction which was the easiest mechanism
STRUCTURE: The Functional Group
The atom or group of atoms that defines the structure of a particular family of organic compounds and, at the same time, determines their properties is called the functional
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This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
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3. Introduction
❏ Have you ever judge.whether Milk, Ghee,
Butter, Salt, Spices, Minerals, or juice that
we buy from the market is pure?
❏ Have you ever noticed that pure word is
written on everything which is packed.
❏ For common meaning pure mean No
Adulteration.
❏ If something is pure then it means that all
the constituent particles of that substance
are same in their Chemical Nature.
❏ As we see around the most of the things
are made up of mixture.
4. What is a Mixture?
❏ Mixture are constituted by more than one kind of pure form of Matter, known
as a substance.
❏ A substance cannot be separated into other kinds of matter by a Physical
Process.
5. Types of Mixtures
Homogeneous Mixtures
❏ Uniform composition.
❏ For Example ;-
❏ Sugar in water
❏ Salt in water
❏ Sulphur in carbon disulphide.
❏ Water and Alcohol, etc.
Heterogeneous Mixtures
❏ Non Uniform composition
❏ For Example :-
❏ Sand and salt.
❏ Sugar and salt
❏ Wood
❏ Blood
❏ Water in oil centre, etc.
7. What is Solution
❏ A solution is a homogeneous Mixtures of
two or more substance.
❏ Lemonade, soda water, etc. Are all
examples of solutions.
❏ As we think only liquids as solution but
solid have also a solution as Alloys are a
type of solution, gas have also a solution
as Air is also a solution.
❏ A solution has two components i.e. a
solute and a solvent.
❏ The component of solution that dissolves
the other components in it(usually present
in larger amount) is called the solvent
❏ The component of solution that is
dissolved in the solvent (usually present in
lesser quantity) is called solute.
8. ❏ A solution is a Homogeneous Mixtures.
❏ The particles of a solution are smaller than 1 nm (10-9
metre) in diameter. So,
they can't be seen by naked eyes.
❏ Because of smaller particles size, they do not scatter a beam of light passing
through the solution.
❏ Path of light is not visible in Solution.
❏ The solute particles cannot be separated from the mixture by the process of
filtration.
❏ The solute particles do not settled down when left undisturbed, that is Solution
is stable.
Properties Of a Solution
9. Concentration of a Solution
❏ At any particular temperature, a solution that has dissolved as much solute as
it is capable of dissolving, is said to be saturated solution.
OR
In other words, when no more solute can be dissolved in a solution at a given
temperature, it is called a saturated solution.
❏ The amount of solute present in the saturated solution at thus temperature is
called it's solubility.
❏ If the amount of solute contained in solution is less than the saturation level, it
is called an unsaturated solution.
10. ❏ The concentration of a solution is the amount of solute present in a given
amount (mass or volume) of solution, or the amount of solute dissolved in a
given amount mass or volume of solvent.
Concentration of solution = Amount of solute / Amount of Solution
OR
Concentration of Solution = Amount of solute / Amount of solvent
❏ There are many other ways of expressing the concentration of a solution, but
here we will learn only two methods
Mass by mass percentage of a solution = Mass of solute/Mass of solution * 100
Mass by volume percentage of a solution = Mass of solute/Volume of solution*100
11. What is suspension?
❏ Non - Homogeneous system, like solids
dispersed in liquids , are called
suspension.
❏ A suspension is a heterogeneous mixtures
in which the solute particles do not
dissolve but remains suspended
throughout the bulk of medium.
❏ Particles of suspension are visible to the
naked eye.
The following digram depicts the suspension :-
12. Properties of a Colloid
❏ A Colloid is a heterogeneous mixture.
❏ The size of particle of a colloid is too small to be individually seen by naked
eyes.
❏ Colloids are big enough to scatter a beam of light passing through it and
make its path visible.
❏ They do not settle down when left undisturbed, that is, a colloid is quite stable.
❏ They can't be separated from the mixture by the process of filtration but
special technique of separation known as centrifugation can be used to
separate the colloidal particle.
13. ❏ The components of
colloidal solution are the
dispersed phase and the
dispersion medium.
❏ Colloids are classified
according to the state solid
liquid gas of the dispersing
medium and dispersed
phase a few common
examples are given in the
following table on the next
slide.
❏ These are the common
everyday life examples.
14. Properties of Suspension
❏ Suspension is a heterogeneous mixture.
❏ The particle of suspension can be seen by naked eyes.
❏ The particles of suspension scatter a beam of light passing through it and
makes it path visible.
❏ The solute particles settle down when a suspension is left undisturbed that is
is a suspension is unstable.
❏ They can be separated from mixture by process of filtration.
15. What is a Colloidal Solution?
❏ The particle of a colloid are uniformly
spread throughout the solution.
❏ Due to the relativity smaller size of particle
as compared to suspension the mixture
appears to be homogeneous.
❏ but actually a colloidal solution is a
heterogeneous mixture.
❏ For example - 🥛 Milk, etc.
❏ Because of the small size of colloidal
particle we cannot see them with naked
eyes.
❏ But these particles can easily scatter a
beam of visible light.
❏ This is scattering of beam of light it is
called Tyndall effect after the name of the
scientist who discovered it.
16. Properties of a Colloid
❏ A colloid is a heterogeneous mixture.
❏ The size of particle of a colloid is too small to be individually seen by naked
eyes.
❏ Colloids are big enough to scatter a beam of light passing through it and
make its path visible.
❏ They do not settle down when left undisturbed that is a colloid is quite stable.
❏ They cannot be separated from the mixture by the process of filtration special
technique called centrifugation.
❏ the components of a colloidal solution are the dispersed phase and dispersion
medium.
❏ Colloids are classified according to the state that is solid liquid gas of the
dispersion medium and dispersed phase.
19. Heterogeneous Mixtures can be
separated into their respective
constituent by simple Physical methods
like handpicking, seiving, filtration that
we use in our day to day life. Sometimes
special technique are used for
separating Mixtures.
20. How can we obtain Coloured components (dye) from
Blue Black Ink
❏ Fill half a beaker with water.
❏ Put a watch glass on the mouth of the
beaker (Fig. 2.5).
❏ Put few drops of ink on the watch glass.
❏ Now start heating the beaker. We do not
want to heat the ink directly. You will see
that evaporation is taking place from the
watch glass.
❏ Continue heating as the evaporation goes
on and stop heating when you do not see
further changes on the watch glass.
❏ Observe carefully and record your
observations.
❏ Thus, we can say that the volatile
components (solvent) from its non volatile
solute by the method of evaporation.
21. How we can separate cream from milk?
❏ Take some full-cream milk in a test tube.
❏ Centrifuge it by using a centrifuging
machine for two minutes. If a centrifuging
machine is not available in the school, you
can do this activity at home by using a milk
churn, used in the kitchen.
❏ If you have a milk dairy nearby, visit it and
ask (i) how they separate cream from milk
and (ii) how they make cheese (paneer)
from milk.
❏ Sometimes the solid particle in a liquid are
very small and pass through filter paper for
such particles the filtration technique
cannot be used for separation.
❏ Such mixtures are separated by
centrifugation.
1. The principle is that the denser particle are
forced to bottom and lighter particles stay
at the top when is spun rapidly.
2. Applications:-
❏ Used in dignostic laboratories for blood
and urine tests.
❏ Used in dairies and home to separate
butter from cream.
❏ Used in Washing machines to squeeze out
the water from wet clothes.
22. How we can separate a mixture of two immissible
liquids?
❏ Let us try to separate kerosene oil from
water using a separating funnel.
❏ Pour the mixture of kerosene oil and water
in a separating funnel (Fig. 2.6).
❏ Let it stand undisturbed for sometime so
that separate layers of oil and water are
formed.
❏ Open the stopcock of the separating
funnel and pour out the lower layer of
water carefully,
❏ Close the stopcock of the separating
funnel as the oil reaches the stop-cock.
❏ Application
1. To separate mixture of oil and water.
2. In the extraction of iron from its ore the
lighter slag is removed from the to by this
method to leave the molten iron, at the
bottom in the furnace.
● The principle is that immiscible liquid
separate out in layers depending on the
densities.
23. How we can separate a mixture of salt and
Ammonium chloride?
❏ We have learnt in chapter 1 that
ammonium chloride changes directly from
solid to gaseous state on heating. So, to
separate such mixtures that contain a
sublimable volatile component from a
non-sublimable impurity (salt in this case),
the sublimation process is used (Fig. 2.7).
Some examples of solids which sublime
are ammonium chloride, camphor
naphthalene and anthracene.
24. Is the dye in Black Ink a Single Coloured?
❏ Take a thin strip of filter paper.
❏ Draw a line on it using a pencil
approximately 3 cm above the lower edge
[Fig. 2.8 (a)].
❏ Put a small drop of ink (water soluble.
❏ That is, from a sketch pen or fountain pen)
at the centre of the line. Let it dry.
❏ Lower the filter paper into a jar/glass/
beaker/test tube containing water so that
the drop of ink on the paper is just above
the water level, as shown in Fig.2.8(b) and
leave it undisturbed.
❏ Watch carefully, as the water rises up on
the filter paper. Record your observations.
The ink that we use has water as the solvent
and the dye is soluble in it. As the water rises on
the filter paper it takes along with it the dye
particles. Usually, a dye is a mixture of two or
more colours. The coloured component that is
more soluble in water, rises faster and in this
way the colours get separated.This process of
separation of components of a mixture is known
as chromatography, Kroma in Greek means
colour. This technique was first used for
separation of colours, so this name was given.
Chromatography is the technique used for
separation of those solutes that dissolve in the
same solvent.
25. With the advancement in technology, newer
techniques of chromatography have been
developed. You will study about chromatography
in higher classes.
❏ Applications
❏ To separate colours in a dye
❏ Pigments from natural colours
❏ Drugs from blood.
Is the dye in Black Ink a Single Coloured?
26. How can we separate a mixture of two miscible
liquids?
❏ Let us try to separate acetone and water
from their mixture.
❏ Take the mixture in a distillation flask.
❏ Fit it with a thermometer.
❏ Arrange the apparatus as shown in Fig.
2.9.
❏ Heat the mixture slowly keeping a close
watch at the thermometer.
❏ The acetone evaporates, condenses in the
condenser and can be collected from the
condenser outlet.
❏ Water is left behind in the distillation flask.
This method is called distillation. It is used for
the separation of components of a mixture
containing two miscible liquids that boil without
decomposition and have sufficient difference in
their boiling points. To separate a mixture of two
or more miscible liquids for which the difference
in boiling points is less than 25K. fractional
distillation process is used, for example, for the
separation of different gases from air different
factions from petroleum products etc. The
apparatus is similar to that for simple distillation,
except that a fractionating column is fitted in
between the distillation flask and the condenser.
27. A simple fractionating column is a tube packed
with glass beads. The beads provide surface for
the vapours to cool and condense repeatedly, as
shown in Fig. 2.10.
How can we separate a mixture of two miscible
liquids?
30. How Can We Obtain Different Gaseous from Air?
If we want oxygen gas from air 2.12) we have to
separate out all the other gases present in the air The air
is compressed by increasing the pressure and is then
cooled by decreasing the temperature to get liquid air.
This liquid air is allowed to warm-up slowly in a fractional
distillation column where gases get separated at different
heights depending upon their boiling points.
31.
32. How we can obtain pure copper sulphate from an
impure sample?
❏ Take some (approximately 5 g impure
sample of copper sulphate in a china dish.
❏ Dissolve it in minimum amount of water.
❏ Filter the impurities out.
❏ Evaporate water from the copper sulphate
solution so as to get a saturated solution.
❏ Cover the solution with a filter paper and
leave it undisturbed at room temperature
to cool slowly for a day.
❏ You will obtain the crystals of copper
sulphate in the china dish.
❏ This process is called crystallisation,
❏ The crystallisation method is used to purify
solids. For example, the salt we get from sea
water can have many impurities in it. To
remove these impurities, the process of
crystallisation is used. Crystallisation is a
process that separates a pure solid in the
form of its crystals from a solution.
33. ❏ Crystallisation technique is better than simple evaporation technique as -
❏ Some solids decompose or some, like sugar, may get charred on heating to
dryness.
❏ Some impurities may remain dissolved in the solution even after filtration. On
evaporation these contaminate the solid.
❏ Applications
❏ Purification of salt that we get from sea water.
❏ Separation of crystals of alum (phitkari) from impure samples.
❏ Thus, by choosing one of the above methods according to the nature of the
components of a mixture, we get a pure substance. With advancements in
technology many more methods of separation techniques have been devised
How we can obtain pure copper sulphate from an
impure sample?
34. In citites, drinking water is supplied from water works. A flow diagram of a typical work's is shown in fig.
2.13.
How we can obtain pure copper sulphate from an
impure sample?
35. Physical and Chemical Changes
❏ Physical change is a change which can be
reversed.
❏ The interconversion of states is a physical
change because these changes occur
without a change in composition and no
change in the Chemical nature of the
substance.
❏ Chemical change is a change which can
not be reversed.
❏ The burning of paper, coal etc.
Here, The burning of candle show both Chemical change and Physical Change as wax melts and again
get transformed into the wax but the thread of candle burnt away but didn't turned into it's earlier form.
36.
37. Properties of Metals and Non Metals
Metal
❏ These are sonorous.
❏ These having lustres shining colour.
❏ They conduct electricity and heat.
❏ They are ductile.
❏ They are malleable.
❏ Examples- Gold , Sillver, Iron , etc.
Non-Metal
❏ These are non sonorous.
❏ These having non lustres shining colour
and found in different colours.
❏ They does not conduct electricity and
heat.
❏ They are non ductile.
❏ They are non malleable.
❏ Examples- Iodine, Carbon, etc.