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How many Faradays of electricity are req...

How many Faradays of electricity are required to deposit 10 g of calcium from molten calcium chloride using inert electrodes ?
( molar mass of calcium = `40 g mol^(-1)`)

A

0.5 F

B

1 F

C

0.25 F

D

2 F

Text Solution

Verified by Experts

The correct Answer is:
A
0.5 F
`Ca^(2+) (aq) + 22e^(-) to Ca(s)`
40 g of calcium required = 2F
10 g will required `=20/40 xx 10 = 0.5 F`
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