Question

The vapour pressure of water is 18.8 mm Hg at a certain temperature. If the vapour pressure

of the solution is 18.78 mm Hg. Find the molality of the solution.​

Answer 1

Explanation:

The vapor pressure of water at room temperature (25° C) is 0.0313 atm, or 23.8 mm of mercury (760 mm Hg = 1 atm).