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For the galvanic cell,
\[
\begin{array}{l}
\mathrm{Zn}(\mathrm{s})+\mathrm{Cu}^{2+}(0.02 \mathrm{M}) \rightarrow \mathrm{Zn}^{2+}(0.04 \mathrm{M})+\mathrm{Cu}(\mathrm{s}) \\
\mathrm{E}_{\text {cell }}={ }_{-} \times 10^{-2} \mathrm{~V} \text {. (Nearest integer) } \\
\text { [use: } \mathrm{E}_{\mathrm{Cu} / \mathrm{Cu}^{2+}}^{0}=-0.34 \mathrm{~V}, \mathrm{E}_{\mathrm{Zn} / \mathrm{Zn}^{2+}}^{0}=+0.76 \mathrm{~V} \text {, } \\
\left.\frac{2.303}{\mathrm{~F}}=0.059 \mathrm{~V}\right] \\
\end{array}
\]
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