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AIEEE 2005 Chemistry Solved Paper
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© examsnet.com
Question : 1
Total: 74
Two solutions of a substance (non electrolyte) are mixed in the following manner.
480
ml
of
1.5
M
first solution
+
520
ml
of
1.2
M
second solution. What is the molarity of the final mixture?
2.70
M
1.344
M
1.50
M
1.20
M
Validate
Solution:
The formula for molarity of mixture of two substance is
=
M
1
V
1
+
M
2
V
2
V
1
+
V
2
Here
M
1
=
1.5
,
V
1
=
480
,
M
2
=
1.2
,
V
2
=
520
∴
Molarity of mixture
=
1.5
×
480
+
1.2
×
520
480
+
520
=
720
+
624
1000
=
1344
1000
=
1.344
© examsnet.com
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