Question

Explain how the strength of an acid depends on its degree of ionisation.

Answer 1

The strength of an acid directly depends on its degree of ionisation.

• Strong acids have a high degree of ionisation (almost 100%). They dissociate completely to produce a high concentration of H⁺ ions (e.g., HCl).
• Weak acids have a low degree of ionisation (usually less than 30%). They dissociate only partially to produce a low concentration of H⁺ ions (e.g., CH₃COOH).