WAEC Standard for Answering Solubility.

(i) Define the term solubility.
(ii) If 1.11g of calcium chloride (CaCl2) were dissolved in 20.0g of distilled water at 20oC, calculate the solubility of the salt in moldm-3. [Ca 40.0, Cl 35.5].

(i) Solubility of a solute in a solvent at a particular temperature is the maximum amount of the solute in moles or grams that will saturate 1 dm3 of the solvent at that temperature.
The amount of solute that will dissolve in I dm3 of solvent at a particular temperature in the presence of undissolved solute