A) 24
B) 21.3
C) 23.6
D) 18
Correct Answer: B
Solution :
V.P. of pure solvent (P) = 24 Wt. of solute (urea) = 6 Wt. of solvent (water) =16.2 V.P. of solution \[({{P}_{s}})=?\] Mol. wt. of urea = 60 According to Raoults law \[\frac{P-{{P}_{s}}}{P}=\frac{w}{m}\times \frac{M}{W}\] \[\frac{24-{{P}_{s}}}{24}=\frac{6}{60}\times \frac{18}{16.2}\] \[{{P}_{s}}=21.3\]You need to login to perform this action.
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