Question

Molarity and molality of a solution of an liquid
(mol. wt = 50) in aquous solution is 9 and 10
respectively. What is the denstiy of solution?
(a) 1 g/ml
(b) 0.95 g/ml
(c) 1.05 g/ml (d) 1.35 g/ml
​

Answer 1

Question Incomplete
Hope it Helps

Answer 2

Given,

m=10

M=9

mol.wt=

g/mol

Using this formula,

(1/m = d/M - Ms/1000 )

1/10=d/9-50/1000

0.1=d/9-0.05

0.15=d/9

d=0.15×9

d=1.35g/ml......

OPTION (D) IS CORRECT

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