Question

Define the following terms and answer the associated questions :

Solubility:

Explain what is meant by the statement " solubility of copper [II] sulphate is 16.2 g at 0$°$C".

Answer 1

Solubility :

• The maximum of solute that can be dissolved in 100 g of solvent at a particular temperature is known as the solubility of the solute in that solvent. For example, the solubility of common salt is 36 g in 100 g of water at 293 K, i.e., 36 g of common salt can be dissolved in 100 g of water at 293 K ( 20$°$C).

Solute :

• Solute is that component of a solution that is present in a lesser amount. For example, in salt water solution, salt is the solute as it is present in a lesser amount than water.

Solvent :

• Solvent is that component of a solution that is present in a larger amount. For example, in sugar water solution, water is solvent as it is present in greater amounts than sugar.

Conclusion :

• The statement " solubility of copper [II] sulphate is 16.2 g at 0$°$C" means that 16.2 g of copper [II] sulphate is dissolved in 100 g of water at 0$°$C.