Question

After electrolysis of a sodium chloride solution with inert electrodes for a certain period of time, $600mL$ of the solution was left which was found to be $1N$ in $NaOH$. During the same period $31.75g$ of copper was deposited in the copper voltameter in series with the electrolytic cell. Calculate the percentage theoretical yield of $NaOH$ obtained.

Answer 1

Equivalent mass of $NaOH=40$
Amount of $NaOH$ formed $=\frac{40}{100}\times 6000=24g$
$31.75g$ of $Cu=1g$ equivalent of $Cu$.
During the same period, $1g-equivalent$ of $NaOH$ should have been formed.
$1g-equivalent$ of $NaOH=40g$
% yield $=\frac{24}{40}\times 100=60$.