Question

Consider the following statements

‘The solubility of sodium chloride at 40⁰C is 36.5 g.’

What is meant by the above statement?

Answer 1

Solubility

• The solubility of a substance is the maximum amount that can be dissolved in a specified amount, say $100\mathrm{g}$ of solvent at a specified temperature.
• It depends upon the nature of the solvent, nature of solute, temperature, and pressure

The statement: The solubility of sodium chloride at $40°\mathrm{C}$ is $36.5\mathrm{g}$.’ specifies that the maximum amount of sodium chloride $\left(\mathrm{NaCl}\right)$ which is dissolved in a specified amount of any solvent (generally $100\mathrm{g}$) at a temperature of $40°\mathrm{C}$ is $36.5\mathrm{g}$.