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Question
Chemistry
The molarity of a solution obtained by mixing 750 mL of 0.5 M HCl with 250 mL of 2 M HCl will be
Q. The molarity of a solution obtained by mixing
750
m
L
of
0.5
M
H
Cl
with
250
m
L
of
2
M
H
Cl
will be
7457
216
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JEE Main 2013
Some Basic Concepts of Chemistry
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A
0.875 M
65%
B
1.00 M
11%
C
1.75 M
15%
D
0.0975 M
9%
Solution:
From the formula
M
f
=
V
1
+
V
2
M
1
V
1
+
M
2
V
2
Given,
V
1
=
750
m
L
,
M
1
=
0.5
M
V
2
=
250
m
L
,
M
2
=
2
M
=
750
+
250
750
×
0.5
+
250
×
2
=
1000
875
=
0.875
M