SATHEE: Electrochemistry - Result Question 20

Electrochemistry - Result Question 20

####21. The weight of silver $($ at wt. $= 108)$ displaced by a quantity of electricity which displaces $5600 m L$ of $O_{2}$ at STP will be :-

(a) $5.4 g$

(b) $10.8 g$

(c) $54.9 g$

(d) $108.0 g$

[2014]

Show Answer

Solution:

(d) $w_{O_{2}} = n_{O_{2}} \times 32$

$w_{O_{2}} = \frac{5600}{22400} \times 32 = 8 g = 1$ equivalent of $O_{2}$

$= 1$ equivalent of $A g = 108$

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