CBSE Class 12-science Answered
Estimate the mass of copper metal produced during the passage of 5A current through CuSO4 solution for 100 minutes.the molar mass of Cu is 63.5g mol-1.
Asked by jaiswalishika960 | 04 Jun, 2019, 02:49: PM
Expert Answer
Given:
I = 5 A
t = 100 min
= 100× 60
= 6000 sec
The reaction is,
Cu2+ + 2e− → Cu
We know,
Q = It
= 5 × 6000
= 3 × 104 C
As 2×96500 C requires to deposite 63.5 gm of Cu.
So, 3 × 104 C will give,
Mass of copper metal deposited is 9.87 gm
Answered by Varsha | 04 Jun, 2019, 04:01: PM
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