If $\mathrm{E}^*\left(\mathrm{Mg}^{+2}{ }_{(\mathrm{aq})} \mid \mathrm{Mg}_{(\mathrm{s})}\right)=-2.37 \mathrm{~V}$.

What is potential for $\mathrm{Mg}_{(\mathrm{s})} \rightarrow \mathrm{Mg}^{+2}(0.1 \mathrm{M})+2 \mathrm{e^-}$ at 298 K ?

If standard emf of cell $\mathrm{Zn}_{(\mathrm{s})}\left|\mathrm{Zn}_{(\mathrm{iM})}^{+2}\right| \mathrm{Ag}_{(\mathrm{iM})}^{+1} \mid \mathrm{Ag}_{(\mathrm{s})}$ is 1.55 V .

What is electrical work done under standard conditions?

Assume the cell reaction,

$$ \mathrm{A}_{(\mathrm{s})}+\mathrm{B}_{(\mathrm{aq})}^{+2} \longrightarrow \mathrm{~A}_{(\mathrm{aq})}^{+2}+\mathrm{B}_{(\mathrm{s})} $$

if $\Delta \mathrm{G}^{\circ}=-386 \mathrm{~kJ}$ at 298 K . What is $\mathrm{E}_{\mathrm{Cell}}^0$ ?