Question

When CH3COONa is added to aq. solution of CH3COOH, the pH value increase or decrease?

Answer 1

The pH will increase.

Explanation:

`CH_3OONa` is formed by reaction of sodium hydroxide (NaOH) and acetic acid (`CH_3COOH`).

Acetic acid is a weak acid and sodium hydroxide is a strong base.

Thus , sodium acetate (`CH_3COONa`) is basic in nature.

When sodium acetate added to aq. solution of acetic acid which is acidic in nature, the concentration of `H^+` decreases.

So , there is an increase in the pH of the solution.