3.13     How much electricity in terms of Faraday is required to produce

           (i)  20.0 g of Ca from molten  CaCI_{2} ?

Answers (1)

The equation for the question is given by :- 

                                               Ca^{2+}\ +\ 2e^-\ =\ Ca

In this equation, for 1 mol of Ca, 2F charge is required or we can say that for 40 g of Ca charge required is 2F.

So,  for 20 g of Ca charge required will be =  F  =   96500 C.

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