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    • a solution containing 10.2g glycerine per litre is isotonic with a 2% solution of glucose . what is the molecular mass of glycerine.
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    a solution containing 10.2g glycerine per litre is isotonic with a 2% solution of glucose . what is the molecular mass of glycerine.

    Amit Kumar 13th Dec, 2019
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    Answer (1)
    Abhishek Kumar 13th Dec, 2019

    Hi Amit,

    Given terms

    total glycerin content in the solution = 10.2 g/l

    glucose solution = 2%

    Since, both are isotonic then

    pie glycerin = pie glucose (osmotic pressure same)

    C1RT = C2RT

    C1=C2 (Since, RT cancelled out)

    10.2 / Mw X 1 = 2 X 1000 / 100 X 180

    Mw = 10.2 X 100 X 180 / 2000

    Glycerin molecular weight = 91.8g

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