Chemistry

Problem

The equilibrium constant for :

\text{CN}^- + \text{CH}_3\text{COOH} \rightleftharpoons \text{HCN} + \text{CH}_3\text{COO}^-

is : (Given

\text{p}K_b

for

\text{CN}^- = 4.69

and

\text{pH}

for

\text{CH}_3\text{COO}^- = 9.25

) a.

3.7 \times 10^4

2.8 \times 10^{-5}

c. 1.97 d. 0.5