At the standard cell potential for the reaction is

CHEMISTRY · Subjective · A Level · Chemistry · Electrode potentials · Electrode potentials

Problem

298\,\text{K}

the standard cell potential for the reaction

Mg^{2+}(\text{aq}) + Ni(\text{s}) \to Mg(\text{s}) + Ni^{2+}(\text{aq})

E^\circ = +2.12\,\text{V}

. The ion concentrations are

[Mg^{2+}] = 0.010\,\text{M}

and

[Ni^{2+}] = 1.0\,\text{M}

. Calculate the cell potential

E

to two significant figures.