AIPMT 2011 Physics and Chemistry Solved Paper

Question : 16 of 100

Marks: +1, -0

The freezing point depression constant for water is −1.86∘Cm−1. If 5.00gNa2SO4 is dissolved in 45.0g H2O, the freezing point is changed by −3.82∘C. Calculate the van't Hoff factor for Na2SO4.