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

  • question_answer
    If 1 M and 2.5 litre NaOH solution is mixed with another 0.5 M and 3 litre NaOH solution, then molarity of the resultant solution will be                [CBSE PMT 2002]

    A)                 1.0 M     

    B)             0.73 M

    C)                 0.80 M   

    D)                 0.50 M

    Correct Answer: B

    Solution :

           \[(2.5\times 1+3\times 0.5)={{M}_{3}}\times 5.5\]                 or \[2.5+1.5={{M}_{3}}\times 5.5\] or \[{{M}_{3}}=\frac{4}{5.5}=0.73\]M.


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