Standard reduction potentials at 25 °C: A galvanic cell is assembled with a silver…

CHEMISTRY · Multi-part · A Level · Chemistry · Electrode potentials · Electrode potentials

Problem

Standard reduction potentials at 25 °C:

Ag^{+} + e^{-} \rightarrow Ag(s)

E^\circ = +0.80\,\text{V}

Ni^{2+} + 2\,e^{-} \rightarrow Ni(s)

E^\circ = -0.25\,\text{V}

A galvanic cell is assembled with a silver electrode in

1.0\,\text{M}\,Ag^{+}

and a nickel electrode in

1.0\,\text{M}\,Ni^{2+}

. (1) Determine which electrode is the anode. (2) Determine whether that electrode is positive or negative during spontaneous operation.