Question

The reduction potential $\left(E^0, in\ V\right)$ of $MnO _4^{-}( aq ) / Mn ( s )$ is$\left[ Given : E_{\left( MnO _4^-( aq ) / MnO _2( s )\right)}^0=1.68 V ; E_{\left( MnO _2( s )/ Mn ^{2+}( aq )\right)}^0=1.21 V ; E_{\left( Mn ^2( aq ) / Mn ( s )\right)}^0=-1.03 V \right]$

Answer 1

Answer: 0.77