Electrochemistry

The $\Delta \mathrm{G}^{\circ}$ for the reaction, $C d^{2+}(a q)+Z n(s) \rightarrow Z n^{2+}(a q)+C d(s)$ is:

$\left[E_{C d^{2+} / C d}^o=-0.403, E_{Z n^{2+} / Z n}^o=-0.763 \mathrm{~V}\right]$