A) 50
B) 180
C) 102
D) 25
E) 51
Correct Answer: C
Solution :
According to Raoults law \[\frac{p-{{p}_{s}}}{p}=\frac{n}{n+N}=\frac{0.05}{2.5+0.05}\] \[=\frac{0.05}{2.55}=\frac{1}{51}\] Weight of solute\[=\frac{w}{W}\times M\times \frac{p}{p-{{p}_{s}}}\] \[=\frac{10\times 18}{90}\times 51\] \[=102g\]You need to login to perform this action.
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