Given that $\mathrm{E}_{0}\left(\mathrm{Fe}^{3+}, \mathrm{Fe}\right)=-0.04 \mathrm{V}$ and $\mathrm{E}_{0}\left(\mathrm{Fe}^{2+}, \mathrm{Fe}\right)=-0.44 \mathrm{V}$, the value of $\mathrm{E}_{0}\left(\mathrm{Fe}^{3+}, \mathrm{Fe}^{2+}\right)$ is:
(a)0.76 V
(b)-0.40 V
(c)-0.76 V
(d)0.40 V
Answer
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