The volume of a certain solution was reduced by 30% and then diluted by adding 100ml of water. If the volume of final solution is 50% more than the original volume, then, what was the initial volume of the solution (in ml)?
a) 125.0 ml
b) 150.0 ml
c) 187.5 ml
d) 225.0 ml
Answers
Answered by
4
d) 225.0 ml ------------------
Answered by
0
Step-by-step explanation:
Correct option is B)
Molarity=
V(solution)
n
M
1
=
V
1
(solution)
n
...(1)
M
2
=
V
2
(solution)
n
...(2)
From (1) and (2)
M
2
M
1
=
V
1
V
2
substituting the values,
V
2
=
0.5M
2M×100ml
V
2
=400ml
Hence, V
2
−V
1
=400ml−100ml=300ml
Therefore, 300ml of water is added to the solution.
Option B is correct.
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