The weight of silver (at. wt. = 108) displaced by a quantity… | Faraday's laws

The weight of silver (at. wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O₂…

2 2014 AIPMT Electrochemistry Faraday's laws Medium

The weight of silver (at. wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of $O_2$ at STP will be:

A 5.4 g

B 10.8 g

C 54.9 g

D 108.0 g

Detailed Solution

Faraday's second law: $\frac{w_{Ag}}{E_{Ag}} = \frac{w_{O_2}}{E_{O_2}}$
$\frac{w_{Ag}}{108} = \frac{\frac{5600}{22400}\times32}{8}$
$w_{Ag} = 108$ g

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