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AMU Medical AMU Solved Paper-1999

  • question_answer
    \[200\text{ }c{{m}^{3}}\]of an aqueous solution of a protein contains 1.26 g. of protein. The O.P. of such a solution at 300 K is found to be\[2.57\times {{10}^{-3}}\]atm. Molar mass of protein is          

    A)  \[60287\text{ }g.mo{{l}^{-1}}\]    

    B)  \[30242.\text{ }g.mo{{l}^{-1}}\]

    C)  \[40404\text{ }g.\text{ }mo{{l}^{-1}}\]   

    D)  \[50404\text{ }g.\text{ }mo{{l}^{-1}}\]

    Correct Answer: A

    Solution :

    : Osmotic pressure \[=\frac{n}{V}RT\] \[2.57\times {{10}^{-3}}=\frac{1.26}{M\times 200}\times 1000\times 0.0821\times 300\] \[M=60377.0\text{ }gmo{{l}^{-1}}\].


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