20
2. 10.6 g of a substance of molecular weight 106
was dissolved in 100 ml. 10 ml of this solution
was pipetted out into a 1000 ml flask and made
up to the mark with distilled water. The
molarity of the resulting solution is(method please)
1) 1 M
2) 10-2 M
3) 10-3
4) 10-4 M
Answers
Answered by
1
ANSWER :
Initial molarity-
=
106
10.6
×
V(ml)
1000
=
106
10.6
×
100
1000
=1M
Now, M
1
V
1
=M
2
V
2
1×10=M
2
×1000
M
2
=
1000
10
M
2
=10
−2
M
So, the correct option is B.
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