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Question 20.11: Calculating the Equilibrium Constant from Cell emf The stand...

Calculating the Equilibrium Constant from Cell emf

The standard emf for the following voltaic cell is 1.10 \mathrm{~V} :

\mathrm{Zn}(s)\left|\mathrm{Zn}^{2+}(a q) \| \mathrm{Cu}^{2+}(a q)\right| \mathrm{Cu}(s)

Calculate the equilibrium constant K_{c} for the reaction

\mathrm{Zn}(s)+\mathrm{Cu}^{2+}(a q) \rightleftharpoons \mathrm{Zn}^{2+}(a q)+\mathrm{Cu}(s)


Substitute the standard emf into the equation relating this quantity to the thermodynamic equilibrium constant, K. Solve for K. Note that K=K_{c}.

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