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Find the charge required to flow through
Question
Find the charge required to flow through an electrolyte to liberate one atom of (a) a monovalent material and (b) a divalent material.
Hard
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Solution
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a
)
M
o
n
o
v
a
l
e
n
t
m
a
t
e
r
i
a
l
1
eq. mass of the substance requires
9
6
5
0
0
coulombs
Since the element is monatomic, thus equivalent mass = molecular mass
6
.
0
2
3
×
1
0
2
3
atoms require
9
6
5
0
0
C
1
atoms require
=
6
.
0
2
3
×
1
0
2
3
9
6
5
0
0
C
=
1
.
6
×
1
0
−
1
9
C
(
b
)
D
i
v
a
l
e
n
t
m
a
t
e
r
i
a
l
Since the element is diatomic, thus equivalent mass
=
2
m
o
l
e
c
u
l
a
r
m
a
s
s
=
2
1
×
6
.
0
2
3
×
1
0
2
3
atoms require
9
6
5
0
0
C
1
atoms require
=
6
.
0
2
3
×
1
0
2
3
9
6
5
0
0
×
2
C
=
3
.
2
×
1
0
−
1
9
C
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