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

  • question_answer
    The molarity of a solution of \[N{{a}_{2}}C{{O}_{3}}\] having \[10.6g/500ml\] of solution is                               [AFMC 1992; DCE 2000]

    A)                 \[0.2M\]

    B)                 \[2M\]

    C)                 \[20M\]  

    D)                 \[0.02M\]

    Correct Answer: A

    Solution :

              \[M=\frac{w\times 1000}{m.\,wt.\times \text{Volume}\,\,\text{in}\,\text{ }ml.}\] \[=\,\frac{10.6\times 1000}{106\times 500}=0.2\,M\].


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