Q.

200ml of water is added to 500ml of 0.2 M solution. What is the molarity of this diluted solution

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a

0.7093 M 

b

0.1428 M

c

0.5010 M

d

0.2897 M 

answer is D.

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Detailed Solution

No. of millimoles =500×0.2=100

Thus, molarity of diluted solution n=100700=0.1428M

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