Given that and the emf of the cell will be given by

CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

Given that

E^\circ_{\text{Zn}^{2+}/\text{Zn}} = -0.763\,\text{V}

and

E^\circ_{\text{Cd}^{2+}/\text{Cd}} = -0.403\,\text{V}

the emf of the cell

\text{Zn} | \text{Zn}^{2+}(0.004\text{M}) || \text{Cd}^{2+}(0.2\text{M}) | \text{Cd}

will be given by (a)

E = -0.36 + (0.059/2) \log (0.004/2)

(b)

E = +0.36 + (0.059/2) \log (0.004/2)

(c)

E = -0.36 + (0.059/2) \log (0.2/0.004)

(d)

E = +0.36 + (0.059/2) \log (0.2/0.004)