Ppt acids and bases
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This document discusses acids and bases. It defines acids as solutions with excess hydrogen ions that have sour tastes, can conduct electricity, and corrode substances. Bases are defined as solutions with excess hydroxide ions that feel slippery, taste bitter, and conduct electricity. The document explains that acids and bases have characteristic properties, such as their effects on litmus paper and reactions with metals. It also introduces the pH scale for measuring acidity and basicity and notes that acid-base reactions involve neutralization.
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This document discusses acids and bases. It defines acids as solutions with excess hydrogen ions that taste sour and conduct electricity, while bases are solutions with excess hydroxide ions that feel slippery and taste bitter. Examples of common acids include vinegar, citrus fruits, and vitamin C. Examples of bases include soap, ammonia, and oven cleaner. The document also introduces the pH scale for measuring acidity and alkalinity, noting that acids have a pH below 7 while bases are above 7. Neutral solutions have a pH of 7. Acid-base reactions called neutralization occur when acids and bases are mixed.Acid and base by waqar
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The document discusses acids and bases. It explains that acids and bases are found in food, homes, and the human body, and they are essential to life and many natural and industrial processes. The document defines acids as solutions with excess hydrogen ions and bases as solutions with excess hydroxide ions. It describes properties, common uses, and how the pH scale is used to measure acidity and alkalinity. Acid-base reactions through neutralization are also covered.Acids bases
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The document discusses acids, bases and the pH scale. It explains that the pH scale ranges from 0-14 and measures the concentration of hydrogen ions in a solution. Acids have a pH below 7 and contain hydrogen ions, while bases have a pH above 7 and contain hydroxide ions. A pH of 7 is neutral. The document also provides examples of common acids and bases, their properties, and some of their uses.Reshma2
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This document discusses acids and bases. It defines acids as solutions with an excess of H+ ions, noting that they have sour tastes, can corrode substances, and turn litmus paper red. Common acids include acetic acid in vinegar and citric acid in fruits. Bases are defined as solutions with an excess of OH- ions, noting they have bitter tastes and turn litmus paper blue. Common bases are found in soaps, ammonia, and cleaning products. The document also explains the pH scale for measuring acidity and alkalinity and how acid-base reactions result in neutralization and salt formation.Shake your acids, bases and salts
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This document discusses acids, bases, and salts. It defines acids as substances that give H+ ions in water and have a sour taste, react with metals, and have a pH less than 7. Bases are defined as substances that give OH- ions in water, usually taste bitter, feel slippery, and have a pH greater than 7. Salts are formed when acids and bases react, combining H+ and OH- ions to form water. Common examples of acids include vinegar and cola, bases include drain cleaner and baking powder, and salts include table salt and toothpaste. The document provides characteristics, examples, and a brief activity to identify household substances as acids, bases or salts.Copy_of_Acids_and_Bases.pptx
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9-12 ppt of Acids and Bases. Students will learn that the chemical difference between acids and bases is that acids produce hydrogen ions and bases accept hydrogen ions. A base is a substance that neutralises acids. When bases are added to water, they split to form hydroxide ions, written as OH-. We call a base that has been added to water an alkaline solution. Students will also learn that an acidbase reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH via titration.
Some of the uses of Acids are:
Carbonic acid (H 2 CO 3 ) is present in the aerated cool drinks we drink. Sulphuric Acid (H 2 SO 4 ) is used in car batteries. Sulphuric Acid (H 2 SO 4 ) is also used to manufacture Paints, dyes, synthetic fibres etc. Nitric acids (HNO 3 ) is used in manufacturing of fertilizers.
Some of the uses of Bases are: It is used to neutralize the acidity in soils.
It is an ingredient in whitewash and mortar. It is a component of the Bordeaux mixture used for protecting agricultural crops from pests. It is used in the preparation of dry mixes for painting and decorating.Recently uploaded (20)
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Ppt acids and bases
- 1. WELCOME
- 2. Acids & Bases They are everywhere.. In your food In your house EVEN IN YOU!!!!!
- 3. What is an acid? An acid is a solution that has an excess of H+ ions. It comes from the Latin word acidus that means "sharp" or "sour". The more H + ions, the more acidic the solution.
- 4. Properties of an Acid Tastes Sour Conduct Electricity Corrosive, which means they break down certain substances. Many acids can corrode fabric, skin,and paper Some acids react strongly with metals Turns blue litmus paper red
- 5. What is a base? A base is a solution that has an excess of OH-ions. Another word for base is alkali. Bases are substances that can accept hydrogen ions
- 6. Properties of a Base Feel Slippery Taste Bitter Corrosive Can conduct electricity. (Think alkaline batteries.) Do not react with metals. Turns red litmus paper blue.
- 7. pH Scale pH is a measure of how acidic or basic a solution is. The pH scale ranges from 0 to 14. Acidic solutions have pH values below 7 A solution with a pH of 0 is very acidic. A solution with a pH of 7 is neutral. Pure water has a pH of 7. Basic solutions have pH values above 7.
- 8. Acid Base Reactions A reaction between an acid and a base is called neutralization. An acid-base mixture is not as acidic or basic as the individual starting solutions.