Question

How many coulombs are required to extract 10 mg atoms from MgCl2 if current efficiency is 50% age.

Answer 1

Answer:

no of gram equivalents equal to it/F

Answer 2

Coulombs to extract 10mg atoms is 11, 580

Given:

The amount of atoms is 10mg from Mgcl2

To Find:

The coulombs which are required to extract 10mg atoms from MgCl2 if current efficiency is 50% age.

Solution:

The reaction is given as,

$Mg^{2+} + 2e^{-}$ → Mg(s

1mole   2mole        1mole

1mole   2 faradays   1mole

1 Mole of Magnesium = 24g  is deposited by 2 faraday of electricity

10mg of atoms is deposited as

=  $\frac{2}{24} (10)$F

= 0.12 × 96500

= 11, 580 Coulombs

11,580 coulombs are required to extract 10 mg atoms from MgCl2

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