Here are the steps to solve this problem:
1. Mass of solute (sugar) = 25 g
2. Mass of solution (water + sugar) = 25 g + 80 g = 105 g
3. % mass of solute = (Mass of solute/Mass of solution) x 100
= (25 g/105 g) x 100
= 23.8%
4. % mass of solvent (water) = 100% - % mass of solute
= 100% - 23.8%
= 76.2%
Therefore, the concentration of the solute (sugar) is 23.8% by mass and the concentration of the solvent (water) is 76.2
I Hope You all like it very much. I wish it is beneficial for all of you and you can get enough knowledge from it. Clear and appropriate objectives, in terms of what the audience ought to feel, think, and do as a result of seeing the presentation. Objectives are realistic – and may be intermediate parts of a wider plan.
solution, in chemistry, a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to the liquid state of matter, but solutions of gases and solids are possible. Air, for example, is a solution consisting chiefly of oxygen and nitrogen with trace amounts of several other gases, and brass is a solution composed of copper and zinc.
A brief treatment of solutions follows. For full treatment, see liquid: Solutions and solubilities.
this section helps students how to prepare solution for each laboratory activities. specially life life science fields such as biotechnology, biology, chemistry and medical laboratory
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
I Hope You all like it very much. I wish it is beneficial for all of you and you can get enough knowledge from it. Clear and appropriate objectives, in terms of what the audience ought to feel, think, and do as a result of seeing the presentation. Objectives are realistic – and may be intermediate parts of a wider plan.
solution, in chemistry, a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to the liquid state of matter, but solutions of gases and solids are possible. Air, for example, is a solution consisting chiefly of oxygen and nitrogen with trace amounts of several other gases, and brass is a solution composed of copper and zinc.
A brief treatment of solutions follows. For full treatment, see liquid: Solutions and solubilities.
this section helps students how to prepare solution for each laboratory activities. specially life life science fields such as biotechnology, biology, chemistry and medical laboratory
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
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The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
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The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
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How to Split Bills in the Odoo 17 POS ModuleCeline George
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This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
7. Performance Standard:
The learners shall be able to
prepare different
concentrations of mixtures
according to uses and
availability of materials.
8. Learning Areas:
The learners should be able to express
concentrations of solutions quantitatively
by preparing different concentrations of
mixtures according to uses and availability
of materials.
(S7MT-Id-3)
Express concentrations of solutions
quantitatively in making latik.
19. “There is a maximum amount of
solute that can be dissolved in a given
solvent at a certain temperature.”
20.
21.
22. “There is a maximum amount of
solute that can be dissolved in a given
solvent at a certain temperature.”
23. Solubility of Solution
1. Unsaturated solution -
contains less solute than a
maximum amount it can
dissolve at a given
temperature.
24. Solubility of Solution
2. Saturated solution - A
solution that contains the
maximum amount of solute
dissolved by a given amount
of solvent.
25. Solubility of Solution
3. Supersaturated solution -
when a solution contains
greater amount of solute,
to the extent that the
added solute is
no longer dissolved.
26. Coco jam or latik
One must know the amount of sugar to be
dissolved in a given amount of coconut milk at
a given temperature.
27. Coco jam or latik
How to make latik?
What are some common ingredients in making latik?
What foods are best when eaten with latik?
28.
29.
30.
31.
32.
33. Concentration of solution can be expressed
quantitatively either percent by mass or percent by
volume.
Percent by Volume
volume of solute
% by volume = --------------------- X 100
volume of solution
Ex.
volume of solute = 1 mL
volume of solution = 4 mL
1mL
% by volume = ------------- x 100 = 25%
4 mL
Percent by Mass
mass of solute
% by mass = ---------------------- X 100
mass of solution
Ex.
Mass of solute = 1gram
Mass solution = 4 grams
1gram
% by mass = ------------- x 100 = 25%
4 grams
34. Examples:
1. Ms. Ligaya is making a latik. She uses
300mL of sugar and 500mL of coconut milk.
What is the total volume of her latik solution?
Ans. 800mL
Given:
Volume of solute = 300mL
Volume of solvent = 500mL
Volume of solution = 800mL
35. 2. What is the percentage composition by
volume of the solution in number 1?
Given:
Volume of solute = 300mL
Volume of solvent = 500mL
Volume of Solution = 800mL
Required: % by volume
36. Given:
Volume of solute = 300mL
Volume of solvent = 500mL
Volume of solution = 800mL
Required: % by volume
Solution:
volume of solute
% by volume = -------------------------- X 100
volume of solution
37. Solution:
volume of solute
% by volume = -------------------------- X 100
volume of solution
substitute the value…
300mL
% by volume = ----------- X 100 = 37.5%
800mL
38. 2. What is the percentage
composition by volume of the
solution in number 1?
Ans. 37.5%
39. What is the percentage by mass
of a salt solution prepared by
dissolving 4g of salt in 36g of
water?
mass of solute
% by mass = ---------------------- X 100
mass of solution
40. What is the percentage by mass of a salt
solution prepared by dissolving 4g of salt in
36g of water?
41. Why do we need to know
about concentrations of
solution?
46. Matching Type
Match column A with column B.
A B
1. Unsaturated a. Component of solution in lesser amount
2. Saturated b. Component of solution in greater
3. Supersaturated amount
4. Solute c. solute is completely dissolve
5. Solvent d. small amount of solute is observed
e. large amount of solute is no longer
dissolved
47. II. Problem Solving
1. What is the percentage composition of
solution in the following: 5g sucrose
(sugar) in 90g water?
2. 250mL of sugar is dissolved in 500mL
coconut milk. What is the volume of
the solution? What is its percentage
composition?
48. Assignment
In a chemistry class, Rina
prepared a solution by mixing
25 g of sugar in 80 g of water.
What are the concentrations
of the solute and solvent in
percent by mass?