Chemistry

Problem

A buffer solution is prepared by dissolving 1 mole of

\text{CH}_3\text{COOH}

and '

a

' mole of

\text{Zn acetate}

. The

\text{pH}

of solution is 4.7447 and

\text{p}K_a

for

\text{CH}_3\text{COOH} = 4.7447

. The number of mole of zinc acetate are : a. 1 b. 2 c. 0.5 d. 0.25