You can get the concept of: Law of Raoult's, Henry's law, The equation of Gibbs-Gelmgoltsa.
Principle: Boiling Point solution is always higher than the boiling point of the solvent. The dependence of the temperature difference between the concentration of the solution is determined in this experiment. By measuring the increase in the boiling point of water solution as a function of the concentration of table salt, urea, and hydroquinone is determined by the molar mass of the solution.
