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Byju's Answer
Standard XII
Chemistry
Molarity
3 L of water ...
Question
3 L of water is added to 2 L of a 5 M
H
C
l
solution. What is the molarity of the resultant solution?
A
2.5
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B
2 M
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C
4 m
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D
4.5 M
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Solution
The correct option is
B
2 M
Given:
M
1
= 5 M;
V
1
=
2 L and
V
2
=
(
3
+
2
)
L = 5 L
As per the concept of dilution,
M
1
V
1
=
M
2
V
2
⇒
(
5
×
2
)
=
M
2
×
5
So,
M
2
=
2
M
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