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CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2010

  • question_answer
    200 mL of water is added to a 500 mL of 0.2 M solution. What is the molarity of this diluted solution?

    A)  0.5010 M            

    B)  0.2897 M

    C)  0.7093 M       

    D)         0.1428 M

    E)  0.4005 M

    Correct Answer: D

    Solution :

    0.2 molar solution, ie, 1000 mL solution contains 0.2 mol solute. \[\therefore \] 500 mL solution contains 0.1 mol solute thus, 700 mL solution contain \[\frac{0.1}{500}\times 700=0.14\text{ }mol\] \[\therefore \]Molarity of solution = 0.14 M


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