How many gram of silver can be produced by the electrolysis of silver nitrate when a current of 0.1 amp is passed through the cell for 5 min?
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Answer:
Correct option is
B
4.5g
Faraday's second law of electrolysis states that, when the same quantity of electricity is passed through several electrolytes, the mass of the substances deposited are proportional to their respective chemical equivalent or equivalent weight.
We know that,
Equivalent weight of Ag =
1
108
=108
Equivalent weight of Cu =
2
63.5
=31.75
Now as per Faraday's second law,
Eq.wt.ofCu
Eq.wt.ofAg
=
MassofCu deposited
MassofAg deposited
⟹
31.75
108
=
W
15.28
⟹W=
108
15.28×31.75
=4.49g
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