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If 10 A deposits 10.8 g of silver in 25 min, how much copper would deposit when 9 A current flows for 20 min.?

a)

3.81 g

b)

6.35 g

c)

10.1 g

d)

12.7 g

Question ID - 152002 :-

If 10 A deposits 10.8 g of silver in 25 min, how much copper would deposit when 9 A current flows for 20 min.?

a)

3.81 g

b)

6.35 g

c)

10.1 g

d)

12.7 g

1 Answer
5876 Votes
3537
Answer Key : (a) -

(a)

For applying Faraday’s second law of electrolysis the same charge should be passed through copper and silver voltmeters.

Charge passed to liberate copper

 C

Charge passed to liberate silver

 C

As 9000 C charge liberates 10.8 g of Ag.

So 10800 C charge liberates

 g of Ag.

Using Faraday’s second law of electrolysis

or   g.

Next Question :

The relation between Faraday constant  chemical equivalent  and electrochemical equivalent  is

a)

b)

c)

d)


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