Acids, bases, and salts
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This document defines acids, bases, and salts. It explains that acids have a pH below 7 and donate hydrogen ions in solution, forming H+ ions. Bases have a pH above 7 and donate hydroxide ions in solution, feeling slippery. Salts are neutral compounds formed from the reaction of acids and bases, containing the positive ion from the base and negative ion from the acid. Common acids include hydrochloric, sulfuric, nitric, acetic, carbonic, and phosphoric acids. Common bases include sodium hydroxide, magnesium hydroxide, and aluminum hydroxide.
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Acid, Base and Salt
An acid is a substance that releases hydrogen ions (H+) in an aqueous solution. Acids have a sour taste, turn litmus paper red, and react with metals and bases. Common examples include hydrochloric acid, acetic acid, and sulfuric acid. Strong acids are corrosive.
A base is a substance that releases hydroxide ions (OH-) in an aqueous solution and accepts protons. Bases usually taste bitter and feel slippery. Sodium hydroxide is an example of a base.
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ACIDS:
• These are the substances which have sour in taste.
• They turn blue litmus solution to red.
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BASES
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• They turn red litmus solution to blue.
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Types of Indicators
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Ex - Litmus, Turmeric
2. Synthetic Indicators - These are the chemical substance prepare in laboratories.
Ex- Phenolphthalein, Methyl Orange
3. Olfactory indicators - These substances have different odour in acids and Bases.
Ex - Onion, clove oil, Vanilla Essence.
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• These are the substances which have sour in taste.
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• These substances are bitter in taste.
• They turn red litmus solution to blue.
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For any doubt and query you may contact us at
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vinaykumarmaurya17852004@gmail.com
Feel free to contact us. We like to help you
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Acids, Bases, & Salts.ppt
Acids have a pH below 7 and donate hydrogen ions in solution. They react with bases, which have a pH above 7 and accept hydrogen ions, to form neutral salts. Strong acids and bases fully ionize in water, while weak ones only partially ionize. The pH scale measures hydrogen ion concentration from 0 to 14. Buffers resist pH changes when small amounts of acids or bases are added. Digestion involves both mechanical and chemical breakdown of food, with the mouth having a neutral pH and the stomach a strongly acidic pH of around 2 to aid in protein breakdown.
Acids, Bases, & Salts (1).ppt
Acids have a pH below 7 and donate hydrogen ions in solution. They neutralize bases and include stomach acid, battery acid, and vinegar. Bases have a pH above 7, feel slippery, and dissolve fats. Common bases are lye, antacids, and ammonia. A salt is the product of a neutralization reaction between an acid and a base, consisting of the positive ion of the base and the negative ion of the acid.
Acids, bases, & salts
Acids have a pH below 7 and donate hydrogen ions in solution. They react with bases and metals. Common acids include hydrochloric acid and citric acid. Bases have a pH above 7 and accept hydrogen ions, feeling slippery. Common bases are sodium hydroxide and ammonia. When an acid and base react, they form a salt and water. Salts are neutral and composed of the ions of the original acid and base. The digestive system uses acids and bases to break down foods, with acid in the stomach and bases in the intestines.
acids basis and salts
Acids have a pH below 7 and donate hydrogen ions in solution. They react with bases and metals. Common acids include hydrochloric acid and citric acid. Bases have a pH above 7 and accept hydrogen ions, feeling slippery. Common bases are sodium hydroxide and ammonia. When an acid and base react, they form a salt and water. Salts are neutral and composed of the ions of the original acid and base. The digestive system uses acids and bases to break down foods, with acid in the stomach and bases in the intestines.
Acids, Bases, & Salts.ppt
Acids have a pH below 7 and donate hydrogen ions in solution, forming H+ ions. They react with metals and bases. Bases have a pH above 7 and accept hydrogen ions, forming OH- ions. Common acids include HCl and H2SO4, while common bases include NaOH and Mg(OH)2. A salt is formed during a neutralization reaction between an acid and a base, producing water. The digestive system uses acids and bases to break down foods, with the stomach having a highly acidic pH around 2 to aid in digestion.
Acids, bases, & salts
This document provides information about acids, bases, and salts. It defines acids as having a pH less than 7 and describes their properties such as neutralizing bases and forming hydrogen ions in solution. Strong acids like hydrochloric acid are described as ionizing completely, while weak acids only partially ionize. Common acids are also listed such as hydrochloric acid found in stomachs. Bases are defined as having a pH greater than 7 and their properties are outlined. The document further discusses pH scales, indicators, buffers, and examples of acid-base reactions. Digestion and pH levels in different parts of the digestive system are briefly covered.
Acids, bases, & salts
This document discusses acids, bases, and salts. It defines acids as having a pH less than 7 and forming H+ ions in solution, and bases as having a pH greater than 7 and forming OH- ions in solution. Acids are classified as weak or strong depending on how completely they ionize in water. Common acids include hydrochloric acid, sulfuric acid, and acetic acid. Bases are also classified as weak or strong. Common bases include sodium hydroxide, magnesium hydroxide, and ammonium hydroxide. A salt is formed when an acid and base react, consisting of the negative ion from the acid and positive ion from the base.
Acids Bases and Salts ppt.ppt
This document defines acids, bases, and salts. It states that acids have a pH below 7 and contain hydrogen ions (H+) in solution. They neutralize bases and are corrosive. Bases have a pH above 7, feel slippery, taste bitter, contain hydroxide (OH-) ions in solution, and neutralize acids. Common acids and bases are listed. Salts are formed from the positive ion of a base and negative ion of an acid during a neutralization reaction between an acid and base, producing water. Examples of salts include NaCl and MgSO4.
PPT on Acids, Bases & Salts submitted by Bhavneet Singh.ppt
This document discusses acids, bases, and salts. It defines acids as substances with a pH below 7 that produce hydrogen ions and notes common acids include hydrochloric acid in stomachs and sulfuric acid in car batteries. Bases are defined as having a pH above 7 and producing hydroxide ions, with examples being sodium hydroxide in drains and magnesium hydroxide in antacids. Salts are neutral substances formed from acid-base reactions, composed of an acid's anion and a base's cation. The document also outlines acid-base reactions and how pH is controlled in various systems like ponds, blood, and swimming pools.
Acids, bases, & salts by sugam raghav
Acids have a pH less than 7 and neutralize bases by donating hydrogen ions in solution. Common acids include hydrochloric acid in stomachs, sulfuric acid in car batteries, and acetic acid in vinegar. Strong acids like hydrochloric and nitric acids fully ionize in water, while weak acids like acetic and phosphoric acids only partially ionize. Bases accept hydrogen ions and include sodium hydroxide, calcium hydroxide, and ammonium hydroxide. The pH scale measures hydrogen ion concentration from 0 to 14, with acids having a lower pH and bases a higher pH. A neutralization reaction occurs when an acid and base react, producing a salt and water.
Science acids, bases and salts1
Acids are sour, turn litmus red, and react with bases to form salts and water. Bases are bitter, feel soapy, turn litmus blue, and react with acids to form salts and water. Common acids include lemon juice and battery acid. Common bases include soap and drain cleaner. Acids and bases can be identified using indicators like litmus paper or red cabbage juice which change color.
Acids, bases, & salts
This document provides information about acids, bases, and salts. It defines acids as having a pH less than 7, forming H+ ions in solution, and neutralizing bases. Common acids include hydrochloric, sulfuric, nitric, acetic, carbonic, and phosphoric acids. Bases are defined as having a pH greater than 7, feeling slippery, and dissolving fats and oils. Common bases include sodium hydroxide, magnesium hydroxide, aluminum hydroxide, and ammonium hydroxide. Salts are formed from the reaction of acids and bases and are composed of the negative ion of an acid and positive ion of a base. A neutralization reaction produces a salt and water when an acid re
ACIDS AND BASES
Acids and bases are defined by their properties in aqueous solutions. Acids release hydrogen ions (H+) and have a sour taste, while bases release hydroxide ions (OH-) and feel slippery. The pH scale measures acidity and basicity, with values from 0-14 and neutral substances having a pH of 7. Acid-base indicators change color with pH and can test whether a solution is acidic or basic. When acids and bases are mixed, a neutralization reaction occurs where they cancel out each other's properties and form a salt and water.
ACIDS and BASES.
Properties/characteristics of Acid and Base.
Understanding the pH scale.
Acid-Base Indicator.
Neutralization.
Example of acids and bases
Gr_11_Acids_and_Bases.pptx
This document discusses the key characteristics and properties of acids and bases. It defines acids as substances that taste sour, feel rough, turn litmus paper red, and have a pH less than 7. Bases are defined as substances that taste bitter, feel slippery, turn litmus paper blue, and have a pH greater than 7. It then provides examples of common acids and bases and discusses the Arrhenius and Bronsted-Lowry theories of acids and bases in terms of proton donation and acceptance. Key reactions are given to illustrate these theories using common acids and bases like HCl, NH3, H2O, HCO3-.
Acid Base And Salt.pdf
1) Acids are compounds that form hydrogen (H+) ions in solution and have a pH less than 7. Common strong acids include hydrochloric acid, nitric acid, and sulfuric acid.
2) Bases are compounds that form hydroxide (OH-) ions in solution and have a pH greater than 7. Common bases include sodium hydroxide, calcium hydroxide, and ammonium hydroxide.
3) A salt is formed through a neutralization reaction between an acid and a base, producing water and an ionic compound composed of the cation from the base and the anion from the acid. Examples of salts include sodium chloride, magnesium sulfate, and ammonium nitrate.
acids and bases
1) Acids release H+ ions in water and bases release OH- ions. Strong acids and bases dissociate completely while weak acids and bases only partially dissociate.
2) Acids taste sour, turn litmus red, and react with metals and carbonates. Bases taste bitter and feel slippery.
3) The pH scale measures acidity and alkalinity, with values below 7 being acidic and above 7 being basic. Acid-base indicators change color at specific pH values.
Lesson 9 acids and bases
Acids and bases are defined by whether they release H+ or OH- ions in water. Strong acids and bases dissociate completely, while weak ones only partially dissociate. Acids taste sour, react with carbonates and metals to produce gas, and contain hydrogen. Bases taste bitter, feel slippery, and contain hydroxide ions. The pH scale measures acidity and alkalinity, with values below 7 indicating acids and above 7 indicating bases. Acid-base indicators change color at specific pH levels, allowing identification of acids and bases. When acids and bases neutralize, they form water and salts.
Intro acids and bases
This document defines acids and bases and their key characteristics. Acids release H+ ions in water and have sour tastes, while bases release OH- ions in water and feel slippery. Strong acids and bases fully dissociate in water, while weak ones only partially dissociate. Common strong acids include sulfuric acid and hydrochloric acid. When acids and bases react, they undergo a neutralization reaction where water and a salt are formed. Indicators are used to test whether a solution is acidic or basic. The pH scale measures the concentration of H+ ions, with lower pH indicating more H+ ions and higher pH less H+ ions.
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Acids, bases, and salts
- 2. What is an ACID? • pH less than 7 • Neutralizes bases • Forms H + ions in solution • Corrosive-reacts with most metals to form hydrogen gas • Good conductors of electricity
- 3. Acids Generate Ions HNO3 + H2O H3O+ + NO3
- 4. Weak vs. Strong Acids • Weak Acids do not ionize completely: Acetic, Boric, Nitrous, Phosphoric, Sulfurous • Strong Acids ionize completely: Hydrochloric, Nitric; Sulfuric, Hydriodic
- 5. Common Acids • HCl- hydrochloric- stomach acid • H2SO4- sulfuric acid - car batteries • HNO3 – nitric acid - explosives • HC2H3O2- acetic acid - vinegar • H2CO3-carbonic acid – sodas • H3PO4- phosphoric acid -flavorings
- 6. What is a BASE? • pH greater than 7 • Feels slippery • Dissolves fats and oils • Usually forms OH - ions in solution • Neutralizes acids
- 7. Weak vs. Strong Bases • Weak Bases: ammonia; potassium carbonate, sodium carbonate • Strong Bases: sodium hydroxide; sodium phosphate; barium hydroxide; calcium hydroxide
- 8. Common Bases • NaOH- sodium hydroxide (LYE) soaps, drain cleaner • Mg (OH)2 - magnesium hydroxide-antacids • Al(OH)3-aluminum hydroxide-antacids, deodorants • NH4OH-ammonium hydroxide- “ammonia”
- 9. Types of Acids and Bases • In the 1800’s chemical concepts were based on the reactions of aqueous solutions. • Svante Arrhenius developed a concept of acids and bases relevant to reactions in H2O. • Arrhenius acid – produces hydrogen ions in water. • Arrhenius base – produce hydroxide ions in water.
- 10. A broader ,more modern concept of acids and bases was developed later. Bronsted-Lowry acid- donates a hydrogen ion in a reaction. Bronsted – Lowry base – accepts a hydrogen in a reaction.
- 11. • Conjugate acid- compound formed when an base gains a hydrogen ion. • Conjugate base – compound formed when an acid loses a hydrogen ion.
- 12. pH Scale
- 13. pH of Common Substances Timberlake, Chemistry 7th Edition, page 335
- 14. Reactions with indicators Indicator Acid color Neutral color Base color Phenolphthalein Colorless Faint pink Dark pink Bromthymol blue Yellow Green Blue Litmus Red ----- Blue
- 15. pH paper • pH paper changes color to indicate a specific pH value.
- 16. Situations in which pH is controlled • “Heartburn” • Planting vegetables and flowers • Fish Tanks and Ponds • Blood • Swimming pools
- 17. • HCl + H20 H3O+ + Cl- (more hydronium ions, more acidic) • NaOH in water Na+ + OH- (more hydroxide ions, more basic) • NaOH + HCl NaCl + HOH Acid + Base yields type of salt and water • NH3 + H20 NH4 + + OH- ammonia gas + water yields ammonium and hydroxide ions Acids and Bases in Solution
- 18. What is a SALT? • A salt is a neutral substance produced from the reaction of an acid and a base. • Composed of the negative ion of an acid and the positive ion of a base. • One of the products of a Neutralization Reaction • Examples: KCl, MgSO4, Na3PO4