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Nernst Equation

Give Nernst e...

Question

Give Nernst equation:
Calculate the electrode potential of the following single electrode.
$C u_{(a q)}^{+ +} (C = 0.01 M) / C u; (E^{\circ} = + 0.337 V)$

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Solution

The Nernst equation is:
$E_{e l} = E_{e l}^{0} - \frac{0.0592}{n} l o g Q$
For the given electrode,
$C u^{2 +} + 2 e^{-} \to C u$
$E_{e l} = E_{e l}^{0} - \frac{0.0592}{n} l o g \frac{1}{[C u^{2 +}]}$
$E_{e l} = + 0.337 V - \frac{0.0592}{2} l o g \frac{1}{0.01}$
$E_{e l} = + 0.278 V$

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C u_{(a q)}^{2 +} + e^{-} \to C u_{(a q)}^{+}

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