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JEE Main & Advanced Chemistry Solutions / विलयन Question Bank Method of expressing concentration of solution

  • question_answer
    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]

    A)                 0.4         

    B)                 0.3

    C)                 0.2         

    D)                 0.1

    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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