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

  • question_answer
    If 5.85 g  of NaCl (molecular weight 58.5) is dissolved in water and the solution is made up to 0.5 litre, the molarity of the solution will be     [AMU 1999; Pb PMT 2000; AFMC 2001]

    A)                 0.2         

    B)                 0.4

    C)                 1.0         

    D)                 0.1

    Correct Answer: A

    Solution :

              \[M=\frac{w}{m.\,wt.\times \text{volume in}\,\,\text{litre}}=\frac{5.85}{58.5\times 0.5}=0.2M\]


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