Question

Arrange the following solutions in the order of increasing osmotic pressure (π) assuming complete ionization.

1. 0.5M Li₂ SO₄
2. 0.5M KCl
3. 0.5M Al₂ (SO₄)₃ 
4. 0.1 M BaCl₂

Answer 1

Increasing order:

0.1 M BaCl₂ < 0.5M KCl < 0 .5M Li₂SO₄ < 0.5 M Al₂(SO₄)₃