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BVP Medical BVP Medical Solved Paper-2009

  • question_answer
    Molarity of \[{{H}_{2}}S{{O}_{4}}\] is 18 M. Its density is 1.8 g/mL. Hence, molality is

    A)  36                                         

    B)  200

    C)  500                                       

    D)  18

    Correct Answer: C

    Solution :

                    Given, molarity of \[{{H}_{2}}S{{O}_{4}}=18M\] That means 18 moles of \[{{H}_{2}}S{{O}_{4}}\] are present in 1000 mL of solution. \[\therefore \] Mass of solution \[=1800-1764=36g\] \[Molalitry=\frac{moles\,of\,solute\,\times 1000}{mass\,of\,solvent}\]                 \[=\frac{18\times 1000}{36}\]                 \[500m\]


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