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Byju's Answer
Standard XII
Chemistry
Faraday's First Law
Calculate the...
Question
Calculate the number of coulombs required to deposit 6.75 g of
A
l
when the electrode reaction is:
A
l
3
+
+
3
e
−
→
A
l
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Solution
Given,
weight = 6.75 g.
n = 3.
According to Faraday's first law,
W
α
Q
W
=
Z
Q
6.75
=
A
t
.
m
a
s
s
n
×
96500
×
Q
⇒
6.75
=
27
3
×
96500
⇒
6.75
×
96500
9
=
Q
∴
Q
=
72
,
375
C
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2
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