Question

HA is a weak acid and BOH is a weak base. For which of the following salts the extent of hydrolysis is independent on the concentration of the salt in its aqueous solution

• A. NaA
• B. NaB
• C. BCl
• D. BA

Answer 1

Answer: (D)

BA

Answer 2

The extent of the hydrolysis (h) of the salt made by weak acid and weak base is independent on the concentration of salt, h = $\frac{\sqrt{K_{h}}}{\sqrt{K_{h}} + 1}$

K_h = hydrolytic constant = $\frac{K_{w}}{K_{a}K_{b}}$