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Basicity Of Acids

  1. Basicity of an acid is the number of hydrogen ions which can be produced by one molecule of the acid.

  2. There are 3 common types of Basicity of an acid

    1. monoprotic

    2. diprotic

    3. triprotic

Physical Properties Of Acids

Acids

  1. Acids have the following physical properties:

    1. Tastes sour

    2. Turns moist blue litmus to red

    3. pH value < 7

    4. Can conduct electricity

    5. Corrosive

  1. Acids have the following chemical properties:

    1. Acid + Reactive Metal → Salt + Hydrogen gas

    2. Acid + Metal Carbonate → Salt + Water + Carbon Dioxide gas

    3. Acid + Base oxide → Salt + Water

    4. Acid + Alkali → Salt + Water

Chemical Properties Of Acids
Strong Acids And Weak Acids

  1. Acids are chemical substances that ionize/dissociate in the presence of water to produce hydrogen ions (or hydroxonium ions).

  2. Acids can be classified into 2 categories:

    1. Strong acids

    2. Weak acids

  3. The strength of an acid depends on the degree of ionization/dissociation of the acid.

Strong acids are acids that ionise completely to form hydrogen ions in water.

Examples:

Sulphuric acid

Hydrochloric acid

Nitric acid

Weak acids are acids that partly ionise to form hydrogen ions in water.

Examples:

Ethanoic acid

Phosphoric acid

Citric acid

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