`pH` for the solution of salt undergoing anionic hydrolysis (say `CH_(3)COONa`) is given by:

Options

A. `pH=(1)/(2)pK_(w)-(1)/(2)pK_(b)-(1)/(2)log_(c )`
B. `pH=(1)/(2)pK_(w)+(1)/(2)pK_(a)-(1)/(2)pK_(b)`
C. `pH=(1)/(2)pK_(w)+(1)/(2)pK_(a)+(1)/(2)log _(c )`
D. None

Answer

C

Explanation

See hydrolysis of salts in comprehensive review.