Question

How is it that the boiling point of the following solutions in water are different:

1. 0.1 M NaCl solution
2. 0.1 M sugar solution?

Why is that the elevation in boiling point of water is not the same in the following solutions? 

0.1 molar NaCl solution and 0.1 molar sugar solution.

Answer 1

The boiling points of 0.1 M NaCl solution and 0.1 M sugar solution in water are different due to the number of solute particles they contribute to the solution, which directly affects boiling point elevation, a colligative property.