The for the given cell is 0.1115 V at 298 K when

CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

\text{Pt(s)}|\text{H}_2(\text{g})(1\text{ bar})|\text{H}^+(\text{aq})(1\text{ M})||\text{M}^{3+}(\text{aq}),\text{M}^+(\text{aq})|\text{Pt(s)}

The

E_{\text{cell}}

for the given cell is 0.1115 V at 298 K when

\frac{[\text{M}^+(\text{aq})]}{[\text{M}^{3+}(\text{aq})]} = 10^a

. The value of

a

is ____. Given:

E_{\text{M}^{3+}/\text{M}^+}^{\circ} = 0.2\text{ V}

;

\frac{2.303RT}{F} = 0.059\text{ V}