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

  • question_answer
    What will be the molarity of a solution containing \[5g\] of sodium hydroxide in \[250\,ml\] solution [MP PET 1999; BHU 1999; KCET 1999; AIIMS 2000; Pb. CET 2000]

    A)                 0.5         

    B)                 1.0

    C)                 2.0         

    D)                 0.1

    Correct Answer: A

    Solution :

              \[M=\frac{W}{m.wt.}\times \frac{1000}{\text{Volume in} ml.}=\frac{5\times 1000}{40\times 250}=0.5M\]


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