Calculate the degree of hydrolysis of the 0.01 M solution of salt` (KF)(Ka(HF)=6.6xx10^(-4))` :-

Options

A. `3.87xx10^(-6)`
B. `3.87xx10^(-5)`
C. `3.87xx10^(-2)`
D. None of these

Answer

B

Explanation

`{:(F^(-)+H_(2)O,hArr,OH^(-)+HF,),(0.01(1-h),, 0.01h0.01h,):}`