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Byju's Answer
Standard XII
Chemistry
Faraday's First Law
The density o...
Question
The density of copper is
8.94
m
L
−
1
. Find out the number of coulombs needed to plate an area
10
×
10
c
m
2
to a thickness of
10
−
2
c
m
using
C
u
S
O
4
solution as electrolyte. (At. mass of
C
u
=
63.6
).
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Solution
Density =
w
V
8.94 =
m
1
c
m
3
W = zQ
8.94 =
63.6
2
F
Q
Q =
8.94
∗
2
∗
96500
63.6
Q = 27129.24 C
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2
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