Question

The volume of gases in litre evolved by passing $0.965A$ current for 1 hr through an aqueous solution of $CH$${}_3$$COONa$ at $25$${}^o$C and 1 atm is__________. (write the nearest integer value)

Answer 1

The number of faradays of electricity passed $=\frac{I\left(A\right)\times t\left(s\right)}{96500}=\frac{0.965\times 3600}{96500}=0.036$

$2C{H}_{3}COONa+2H_{2}O\to C_2{H}_6+2C{O}_2+2NaOH+H_2$
The number of moles of gases liberated $2\times 0.036=0.072$
The volume of gases liberated $\frac{nRT}{P}=\frac{0.072\times 0.0821\times 298}{1}=1.76\approx 2L$.