First slide

Theory of dilute solutions

Question

The osmotic pressure of a non-aqueous solution is measured by

Moderate

A

Berkeley and Hartley method
B

Pfeffer's method
C

Morse and Frazer method
D

Townend's method

Solution

First three methods involve use of Cu₂Fe(CN)₆ as semi-permeable membrane which will be dissolved in non-aqueous solvent and thus only Townend's method having semipermeable membrane of powdered glass and clay can be used to determine the osmotic pressure of non-aqueous solutions.

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