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Consider the cell
\(\mathrm{Pt}(\mathrm{s})\left|\mathrm{H}_{2}(\mathrm{~s})(1 \mathrm{~atm})\right| \mathrm{H}^{+}\left(\mathrm{aq},\left[\mathrm{H}^{+}\right]=1\right)|| \mathrm{Fe}^{3+}(\mathrm{aq}), \mathrm{Fe}^{2+}(\mathrm{aq}) \mid \mathrm{Pt}(\mathrm{s})\)
Given: \(\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{\circ}=0.771 \mathrm{~V}\) and \(\mathrm{E}_{\mathrm{H}^{+} / \frac{1}{2} \mathrm{H}_{2}}^{\circ}=0 \mathrm{~V}, \mathrm{~T}=298 \mathrm{~K}\)
If the potential of the cell is \(0.712 \mathrm{~V}\) the ratio of concentration of \(\mathrm{Fe}^{2+}\) to \(\mathrm{Fe}^{2+}\) is (Nearest 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live