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At 300K, 36g of glucose present in one litre of its solution has an osmotic pressure of 4.98 bar. If the osmotic pressure of the solution is 1.52 bar at the same temperature, what would be its concentration?

At 300K, 36g of glucose present in one litre of its solution has an osmotic pressure of
4.98 bar. If the osmotic pressure of the solution is 1.52 bar at the same temperature,
what would be its concentration?

Grade:9

3 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
8 years ago

pi1=c1RT
pi2=C2RT
Pi1/pi2=C1/C2
Let us calculate the concentration of the first solution with osmotic pressure of 4.98 bar:
Mass of glucose = 36 g
Molar mass of glucose = 180 g/mol
Number of moles of glucose = 36/180 = 0.2 moles Volume of the solution = 1 L Molarity = Number of moles of glucose / Volume of the solution
Molarity = 0.2 moles / L π1= 4.98 bar π1= 1.52 bar C2=1.52*.2/4.98
saipallavi
12 Points
5 years ago
At 300K, 36g of glucose present in one litre of its solution has an osmotic pressure of4.98 bar.
now let us find its concentration,
Yash Chourasiya
askIITians Faculty 256 Points
2 years ago
Dear Student

Please see the solution in the attachment

643-520_Untitled.png

I hope this answer will help you.
Thanks & Regards
Yash Chourasiya

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