Some standard electrode potentials are given: \( \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} \rightarrow \...

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Some standard electrode potentials are given:
\( \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Fe} ; E^{\circ}=-0.440 \mathrm{~V} \)
\( \mathrm{Fe}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Fe} ; E^{\circ}=-0.036 \mathrm{~V} \)
The standard electrode potential for: \( \mathrm{Fe}^{3+}+\mathrm{e}^{-} \rightarrow \) \( \mathrm{Fe}^{2+} \), is
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