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JEE Main & Advanced Sample Paper JEE Main Sample Paper-42

  • question_answer
    The osmotic pressure of blood is 7.65 atm at \[37{}^\circ C\]. How much glucose should be used per litre for an intravenous injection that is to have the same osmotic pressure as blood?

    A)  180 g                         

    B)  54.2 g

    C)  86 g                           

    D)  111 g

    Correct Answer: B

    Solution :

    \[n=\frac{\pi V}{RT}=\frac{(7.65atm)(1.00L)}{(0.0821Latm)/molK)(310K)}\]\[=0.301mol\] Weight of glucose used =\[(0.301mol)(180g{{C}_{6}}{{H}_{12}}{{O}_{6}}/mol)=54.2g\]


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