Solutions Question 196
Question: 3.65 gms of HCl is dissolved in 16.2 gms of water. The mole fraction of HCl in the resulting solution is [EAMCET 2003]
Options:
A) 0.4
B) 0.3
C) 0.2
D) 0.1
Show Answer
Answer:
Correct Answer: D
Solution:
$ X=\frac{n}{n+N} $
$ n=\frac{w}{m}=\frac{3.65}{36.5}=0.1,,\ \ N=\frac{W}{M}=\frac{16.2}{18}=0.9 $ X $ =\frac{0.1}{0.1+0.9}=0.1. $
