The predicted electromotive force (emf) of the electrochemical cell
\(\rm F e(s) / \mathrm{Fe}^{2+}(a q)(0.01 M) \| C d^{2+}(a q)(0.01 M) / C d(s)\ is\)
\(\rm \left.\left(E_{\left(F e^{2+} / F e\right.}^0\right)=-0.447 \mathrm{~V} \text { and } E_{\left(C d^{2+} / C d\right)}^0=-0.403 \mathrm{~V}\right)\)
1
–0.850 V
2
+0.044 V
3
+0.0850 V
4
–0.044 V
5
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