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Class 12 NEET Chemistry Solutions Questions
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© examsnet.com
Question : 62
Total: 76
What is the molarity of
H
2
S
O
4
solution, that has a density
1.84
g
∕
c
c
at
35
°
C
and contains
98
%
by weight?
(1996)
18.4
M
18
M
4.18
M
8.14
M
Validate
Solution:
We know that
98
%
H
2
S
O
4
by weight means
98
g
of
H
2
S
O
4
is present in
100
g
of solution.
Therefore, its weight is 98 and moles of
H
2
S
O
4
=
Weight of
H
2
S
O
4
Molecular Weight
=
98
98
=
1
and volume of solution
=
Mass
Density
=
100
1.84
=
54.35
mL
=
54.35
1000
L
Therefore, molarity of
H
2
S
O
4
=
Moles of
H
2
S
O
4
Volume (in litres)
=
1
×
1000
54.35
=
18.4
M
© examsnet.com
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