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Q.

Molarity and Molality of a solution of a liquid (molecular weight =50 ) in aqueous solution is 9 and 18 respectively. What is the density of solution?

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a

0.662 g l cc

b

0.95 g l cc

c

1 g l cc

d

1.05 g l cc

answer is B.

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Detailed Solution

m=M×10001000+d−M×moI

18=9×10001000d−50×9 ⇒d=0.95g/cc

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