Question

Give the basicity of

(b) acetic acid.

Answer 1

The number of hydronium ions $\left({\mathrm{H}}_3{\mathrm{O}}^{+}\left(aq\right)\right)$ that is produced per molecule of acid in an aqueous solution is known as its basicity.

The Acetic acid $\left({\mathrm{CH}}_3\mathrm{COOH}\left(aq\right)\right)$ produces one hydronium ion $\left({\mathrm{H}}_3{\mathrm{O}}^{+}\left(aq\right)\right)$ when it gets completely dissociated in water.

The reaction is as follows:

${\mathrm{CH}}_3\mathrm{COOH}\left(aq\right)+{\mathrm{H}}_2\mathrm{O}\left(l\right)\rightleftharpoons {\mathrm{H}}_3{\mathrm{O}}^{+}\left(aq\right)+{{\mathrm{CH}}_3\mathrm{COO}}^{-}\left(aq\right)$

Therefore, the basicity of Acetic acid is $1$.