To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.

Explain the terms

(a) Solution

(b) solute

(c) solvent

Give three factors which affect the solubility of a solid solute in a solvent.

(a) If you are given some copper sulphate crystals, how would you proceed to prepare its saturated solution at room temperature?

(b) How can you show that your solution is really saturated?