Question

how much electricity in terms of faraday is required to produce 20 g of Ca from molten CaCl2?

Answer 1

Explanation:

Ca2++2e−→Ca

1 mole (40 g) of Ca will require 2 F of electricity.

20 g (0.5 mole) of Ca will require 1 F of electricity.

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Answer 2

Explanation:

for 0.5 moles of Ca we need 1 faraday