explain any two uses of acid and alkali?
Answers
An acid is a contributing product containing hydrogen ions. Now the solution contains more hydrogen ions than the hydroxide ions. That form of solution is acidic. A foundation is a material capable of consuming hydrogen ions. As a base is dissolved in water the equilibrium between hydrogen ions and hydroxide ions changes in the opposite direction.
Explanation:
(a) Acids are those chemical substances that have a sour taste. Example: Acetic acid and citric acid.
Base is a chemical substance that has a bitter taste. Example: Caustic soda and washing soda.
(b) Strong bases – Sodium hydroxide (NaOH), potassium hydroxide (KOH).
Weak bases – Calcium hydroxide (Ca(OH2)), ammonium hydroxide (NH4OH).
(c)
(i) When an acid is dissolved in water Hydrogen ions are found.
(ii) When a base (or alkali) is dissolved in wate Hydroxide ions are found.
(d) Neutralisation reaction between acids and bases:
Hydrogen ions (From acid)H+(aq)+Hydroxide ions (from bases)OH−(aq)NeutralisationReactionWaterH2O(l)
(e) Two important uses of bases are:
(i) Sodium hydroxide is used in the manufacture of soap, paper and rayon.
(ii) Calcium hydroxide is used in the manufacture of bleaching powder.