Understanding the Chemical Properties of Acids and Bases Definition of Acids and Bases: Acids are substances that, when dissolved in water, release hydr...
Understanding the Chemical Properties of Acids and Bases
Definition of Acids and Bases:
Acids are substances that, when dissolved in water, release hydrogen ions (H+). Bases are substances that, when dissolved in water, release hydroxide ions (OH-).
Properties of Acids:
Acids have a sour taste
Acids are corrosive
Acids can burn skin and tissue
Acids react with metals to form salts
Properties of Bases:
Bases have a bitter taste
Bases are corrosive
Bases can raise the pH of water
Bases can neutralize acids to form salts
The pH Scale:
The pH scale is a measure of the acidity or basicity of a solution. The pH scale ranges from 0 to 14, with 7 being neutral. Acids have a pH below 7, while bases have a pH above 7.
Acid-Base Reactions:
When an acid and a base react, they form a salt and water. The salt can be either soluble or insoluble. The water is a neutral solution.
Examples:
Hydrochloric acid (HCl) is an acid. It is corrosive and can burn skin.
Sodium hydroxide (NaOH) is a base. It is a corrosive and can raise the pH of water.
Citric acid is an acid. It is used in food preservation.
Ammonia (NH3) is a base. It is used in fertilizers and as a household cleaning agent