The ratio of vapour pressure to the saturation pressure of water at a given temperature can be used to calculate

The Antoine Equation is often used to calculate the saturation pressure of a pure species at a given temperature. Use the thermodynamic knowledge you have gained to explain what thermodynamic properties the Antoine coefficients represent.

A solution is prepared by dissolving  of a non-volatile solute in a of water. The vapour pressure of above the solution is and the vapour pressure of pure water at this temperature is . The boiling point elevation constant of the solute is . At what temperature will the solution boil at normal pressure? 

How many grams of solid KClO3 are needed to prepare 18.0 L of oxygen, O2 which is collected over water at 1.00 atm pressure and at a temperature of 22C. The vapour pressure of water at 22C is 19.8 torr.