3.a) Write the net ionic equation for the redox reaction that occurs in a Ni-Al Galvanic cell. \begin{array}{ll} \mathrm{Ni}^{2+}(\mathrm{aq})+2 \mathrm{e} \rightarrow \mathrm{Ni}_{(\mathrm{s})} & \mathrm{E}_{\mathrm{f}}=-0.23 \mathrm{~V} \\ \left.\mathrm{~A} \ell^{3+}(\mathrm{aq})+3 \mathrm{e}^{-} \rightarrow \mathrm{A} \ell_{\mathrm{s}}\right) & \mathrm{E}_{\mathrm{r}}=-1.66 \mathrm{~V} \end{array} b) Determine the cell potential for the above reaction.

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