Answer to Question #220070 in General Chemistry for ASH

Question

A solution of potassium nitrate was made by dissolving 100 g of solid in 200 mL of water at 40°C. The solution was then cooled to 20°C and as the solubility reduced, crystals of potassium nitrate precipitated from the solution.

Calculate the mass of solid potassium nitrate crystals that would be formed in the solution at 20 °C. Note: 1 mL of water equals 1 g of water 

Answer 1

Mass of Potassium Nitrate crystals =147.5g