During electrolysis 2 0 g of a metal is deposit... - JAMB Physics 2006 Question
During electrolysis, 2.0 g of a metal is deposited using a current of 0.5 A in 3 hours. The mass of the same metal which can be deposited using a current of 1.5 A in 1 hour is?
A
1.0 g
B
0.5 g
C
3.0 g
D
2.0 g
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Correct Option: D
M = Itz; z = (M)/It = (2)/0.5 x 3 x 60 x 60
= 3.703 x 10<sup>-4</sup> gc<sup>-1</sup><br />
∴ M = Itz = 1.5 x 1 x 60 x 60 x 3.703 x 10-4
= 1.99962g.
=2.0g
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