Answer to Question #111704 in General Chemistry for Nicolas

Question #111704

An aqueous solution contains 0.87 g/L of an organic compound. The osmotic pressure of
this solution is 83 mmHg at 29°C. What is the molar mass of the solute?

Expert's answer

P=83mmHg

T=302.15k

C=0.87g/L

"PV=RT"

V=(8.314*302.15)/83=30.26cm3

"M= C*V"

m=0.87*30.26=26.33g

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