How much electricity in terms of faraday is required to produce 20 grams of calcium from molten calcium chloride?

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Solution

$∵ W = z . Q$ $⟹ Q = \frac{W}{z}$ $= (\frac{20 \times 2 \times F}{40})$ $= 1 F$
$⎧ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎩ \begin{matrix} M o (C a) = 40 n_{f} = 2 (C a^{2 +}) z = E / F = (\frac{40}{2 \times F}) \end{matrix} ⎫ ⎪ ⎪ ⎪ ⎪ ⎬ ⎪ ⎪ ⎪ ⎪ ⎭$

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