electrochemistry

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• .$Zn+C{{u}^{2+}}(aq) \rightleftharpoons Cu+Z{{n}^{2+}}(aq)$, reaction quotient is $Q=\frac{[Z{{n}^{2+}}]}{[C{{u}^{2+}}]}$. Variation of ${{E}_{\text{cell}}}$ with log Q is of the type with OA = 1.10 V. ${{E}_{\text{cell}}}$ will be 1.1591 V when

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• When a rod of metal $A$ is dipped in an aqueous solution of metal $B$ (concentration of ${{B}^{2+}}$ ion being 1 M) at ${{25}^{o}}C$, the standard electrode potentials are ${{A}^{2+}}/A=-0.76\,volts,\,{{B}^{2+}}/B=+0.34\,volts$

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• If the standard electrode potential of $C{{u}^{2+}}/Cu$ electrode is $0.34 V$, what is the electrode potential of $0.01 M$ concentration of $C{{u}^{2+}}$ (T= 298K)

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