Write notes on
i) saturated solution
ii) unsaturated solution

Write notes on any two factors affecting solubility.

a) What happens when MgSO₄.7H₂O is heated? Write the appropriate equation
b) Define solubility

A solution is prepared by dissolving 45 g of sugar in 180 g of water. Calculate the mass percentage of solute.

3.5 litres of ethanol is present in 15 litres of aqueous solution of ethanol. Calculate volume percent of ethanol solution.

1.5 g of solute is dissolved in 15 g of water to form a saturated solution at 298K. Find out the solubility of the solute at the temperature.

The Solubility of sodium nitrate at 50°C and 30°C is 114 g and 96 g respectively. Find the amount of salt that will be thrown out when a saturated solution of sodium nitrate containing 50 g of water is cooled from 50°C to 30°C?

A solution was prepared by dissolving 25 g of sugar in 100 g of water. Calculate the mass percentage of solute.

16 grams of NaOH is dissolved in 100 grams of water at 25°C to form a saturated solution. Find the mass percentage of solute and solvent.
(i) Mass of the solute (NaOH) = 16 g
(ii) Mass of the solvent H₂O = 100 g

Find the amount of urea which is to be dissolved in water to get 500 g of 10 % w / w aqueous solution?