Solutions Question 50

Question: 0.6,g of a solute is dissolved in 0.1,litre of a solvent which develops an osmotic pressure of 1.23 atm at 27oC . The molecular mass of the substance is [BHU 1990]

Options:

A) 149.5,g,mole−1

B) 120,g,mole−1

C) 430,g,mole−1

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

m=wRTPV=0.6×0.082×3001.23×0.1=120

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