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AIIMS 2004
Exam
AIIMS
Year
2004
Subject
Chemistry
Chapter
Solutions

AIIMS 2004 · Chemistry · Solutions

The average osmotic pressure of human blood is 7.8 bar at 37^ C ....

The average osmotic pressure of human blood is 7.8 bar at 37∘C37^{\circ} \mathrm{C}. What is the concentration of an aqueous NaCl\mathrm{NaCl} solution that could be used in the blood stream?

Options

  1. A0.16 mol/L0.16 \mathrm{~mol} / \mathrm{L}
  2. B0.32 mol/L0.32 \mathrm{~mol} / \mathrm{L}
  3. C0.60 mol/L0.60 \mathrm{~mol} / \mathrm{L}
  4. D0.45 mol/L0.45 \mathrm{~mol} / \mathrm{L}

Correct answer

B. 0.32 mol/L0.32 \mathrm{~mol} / \mathrm{L}

Step-by-step solution

:π=CRT: \pi=C R T C=πRT=7.80.082×310=\frac{\pi}{R T}=\frac{7.8}{0.082 \times 310}=0.31  mol\mathrm{~mol}/ L.\mathrm{L} .
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