Chemistry - Electrochemistry Question with Solution | TestHub

For the cell reaction $2{\mathrm{Ce}}^{4+}+\mathrm{Co}\to 2{\mathrm{Ce}}^{3+}+$ ${\mathrm{Co}}^{3+};E_{\mathrm{cell}}^{\mathrm{o}}$ cell is $1.89\mathrm{V}$. If $E_{{\mathrm{Co}}^2+i{\mathrm{c}}_0}$ is $-0.28\mathrm{V}$, what is the value of $E_{Ce}^{\circ }{}_{C+i{c}_{j+}}?$