Question

Vapour pressure of pure water at 35°c is 31.82mm hg . when 27g of the solution is dissolved in 100g of water , vapour pressure of the solution formed is 30.95mmhg . calculate the molecular mass of the solute ?

Answer 1

Explanation:

Vapour pressure of pure water at 35°C is 31.82 mm Hg when 27.0 g of solute is dissolved in 100 g of water. Vapour pressure of pure water at 35°C is 31.82 mm Hg when 27.0 g of solute is dissolved in 100 g of water (at the same temperature) vapour pressure of the solution thus formed is 30.95 mm Hg.