Solutions Question 161
Question: 36g water and 828g ethyl alcohol form an ideal solution. The mole fraction of water in it, is [MP PMT 2003]
Options:
A) 1.0
B) 0.7
C) 0.4
D) 0.1
Show Answer
Answer:
Correct Answer: D
Solution:
$ N=\frac{W}{M}=\frac{828}{46}=18,,n=\frac{w}{m}=\frac{36}{18}=2 $
$ {x_{H_2O}}=\frac{n}{n+N} $
$ =\frac{2}{2+18}=\frac{2}{20}=0.1 $
