The standard Gibbs energy change for the cell reaction 3 Fe(s) +2 Au ^ 3+ (aq) 3 Fe ^…

CHEMISTRY · Numerical · A Level · Chemistry · Electrode potentials · Electrode potentials

Problem

The standard Gibbs energy change for the cell reaction

3\mathrm{Fe(s)}+2\mathrm{Au}^{3+}\mathrm{(aq)}\rightarrow3\mathrm{Fe}^{2+}\mathrm{(aq)}+2\mathrm{Au(s)}

is to be calculated. Given

E^\circ_{\mathrm{Au}^{3+}/\mathrm{Au}}=1.40\text{ V}

and

E^\circ_{\mathrm{Fe}^{2+}/\mathrm{Fe}}=-0.44\text{ V}