Question

What will be the nature of salt solution of strong acid and weak base?

Answer 1

The dissociation constant $\left({\mathrm{K}}_{\mathrm{a}}\right)$ and dissociation constant $\left({\mathrm{K}}_{\mathrm{b}}\right)$: The acid dissociation constant $\left({\mathrm{K}}_{\mathrm{a}}\right)$ is a quantitative measure of the strength of an acid in solution while the base dissociation constant $\left({\mathrm{K}}_{\mathrm{b}}\right)$ is a measure of basicity-the base's general strength.

A salt formed between a weak acid and a weak base can be neutral, acidic, or basic depending on the relative strengths of the acid and base.

If ${\mathrm{K}}_{\mathrm{a}}\left(\mathrm{cation}\right)>{\mathrm{K}}_{\mathrm{b}}\left(\mathrm{anion}\right)$the solution of the salt is acidic.
If${\mathrm{K}}_{\mathrm{a}}\left(\mathrm{cation}\right)={\mathrm{K}}_{\mathrm{b}}\left(\mathrm{anion}\right)$ the solution of the salt is neutral.
If ${\mathrm{K}}_{\mathrm{a}}\left(\mathrm{cation}\right)<{\mathrm{K}}_{\mathrm{b}}\left(\mathrm{anion}\right)$the solution of the salt is basic.

Final Answer: The nature of salt solution of strong acid and weak base is acidic.