The number of Faradays(F) required to produce 20 g of calcium from molten $CaCl_2$ (Atomic mass of Ca = 40 g $

Question

The number of Faradays(F) required to produce 20 g of calcium from molten $CaCl_2$ (Atomic mass of Ca = 40 g $mol^{-1}$) is

Accepted Answer

1 equivalent of any substance is deposited by 1 F of charge. We have, 20 g calcium. Number of equivalents = $\frac{	ext{Given mass}}{	ext{Equivalent mass}} = \frac{20}{20} = 1$. Equivalent mass of Ca = $\frac{40}{2} = 20$. So, 1 faraday of charge is required.

Step-by-Step Solution

Practice All Chemistry Questions