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NEET Sample Paper NEET Sample Test Paper-81

  • 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)  54.2 g             

    B)  90 g

    C)  12 g                            

    D)  0.30 g

    Correct Answer: A

    Solution :

    \[pV=nRT\] \[n=\frac{pV}{RT}=\frac{(7.65\,atm)(1.00\,L)}{(0.0821\,L\,atm/mol\,K)\,(310\,K)}\] \[= \,\,0.301 mol\] \[\operatorname{Mass} of glucose = \left( 0.301 mol \right)\] \[(180g/mol\,{{C}_{6}}{{H}_{12}}{{O}_{6}})=54.2g\]


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