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AIIMS 201827 May
Exam
AIIMS
Year
2018
Date
27 May
Subject
Chemistry
Chapter
Solutions

AIIMS 2018 · 27 May · Chemistry · Solutions

1 ~g of polymer having molar mass 1,60,000 ~g is dissolved in 800...

1 g1 \mathrm{~g} of polymer having molar mass 1,60,000 g1,60,000 \mathrm{~g} is dissolved in 800 mL800 \mathrm{~mL} water. Calculate the osmotic pressure in pascal at 27∘C27^{\circ} \mathrm{C}. (R=8.314 J K−1 mole−1)\left(R=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mole}^{-1}\right)

Options

  1. A19.419.4
  2. B0.900.90
  3. C0.500.50
  4. D1.201.20

Correct answer

A. 19.419.4

Step-by-step solution

π=CRT\pi=C R T π=11.6×105×8.314×300800×10−6=19.4 Pa\pi=\frac{1}{1.6 \times 10^5} \times \frac{8.314 \times 300}{800 \times 10^{-6}}=19.4 \mathrm{~Pa}
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