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Q.

The number of electrons involved in the electro deposition of 63.5 g. of Cu from a solution of CuSO4 is

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a

large 6.0, times {10^{23}}

b

3.011, times {10^{23}}

c

12.04, times ,{10^{23}}

d

6.02, times ,{10^{22}}

answer is C.

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Detailed Solution

1 F deposits 1 eq of Cu from its salt solution.

1 F = charge carried by 6.02 x 1023 electrons.

1 eq of Cu = 31.75 gm

For the electro deposition of 31.75 gm of Cu =6.02 x 1023 electrons.

For the electro deposition of 63.5gm of Cu =frac{{63.5 times 6.02 times {{10}^{23}}}}{{31.75}} = 12.04 times {10^{23}}

 

 

 

 


                                                                                          

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