Explain the term Hydrolysis of salts with examples. Discuss the pH of the following types of salt solutions.
(i) Salts of weak acid and strong base.
(ii) Salts of strong acid and weak base.

Explanation

It may be defined as a phenomenon in which the anion or çation or both of a salt react with water producing excess of `OH^(Theta)` ions or `H^(o+)` ions or both in aq. Solution.
`to` Give salt `CH_(3)COONa` is obtained by the reaction of weak acid `(CH_(3)COOH)` and strong base (NaOH).
`to` The ionisation `CH_(3)COONa` as follows
`CH_(3)COONa hArr CH_(3)COO^(-)+Na^(+)`
`to` The above salt undergo anionic hydrolysis
`CH_(3)COO^(-)+H_(2)O hArr CH_(3)COOH+OH^(-)`
`:.` The aq .solution of salt is basic.due to greater. `OH^(-)` ion concentration than `H^(+)` ion concentration:
`:. p^(H) gt 7`