Consider the following reaction
Question:

Consider the following reaction

$\mathrm{MnO}_{4}^{-}+8 \mathrm{H}^{+}+5 \mathrm{e}^{-} \rightarrow \mathrm{Mn}^{2+}+4 \mathrm{H}_{2} \mathrm{O}, \mathrm{E}^{\mathrm{o}}=1.51 \mathrm{~V}$

The quantity of electricity required in Faraday to reduce five moles of $\mathrm{MnO}_{4}^{-}$is________.

Solution:

Official Ans. by NTA (25)