Question

120g ${CH}_{3}COOH\&46g{C}_2{H}_{5}OH$ are mixed & heated until equilibrium is reached. If 9g $H_{2}O$ is present at equilibrium, total number of moles at equilibrium is?

• A. 4.5
• B. 3
• C. 3/2
• D. 2

Answer 1

The correct option is B 3

$C{H}_{3}COOH+C_2{H}_{5}OH\rightleftharpoons C{H}_3-COO-C_2{H}_3+H_{2}O$

$2$ $1$

$2-0.5$ $1-0.5$ $0.5$ $0.5$

$n_{H_{2}O}$ $0.5mol$

$n_{C{H}_{3}COOH}=\frac{120}{60}=2mol$

$n_{C_2{H}_{3}OH}=\frac{46}{46}=1mol$

total macs $=1.5+0.5+0.5+0.5$

$=3mol$