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. $



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