Edexcel IAL Chemistry A2 14.6 Strong and weak acid dissociation
Edexcel IAL Chemistry A2 14.6 Strong and weak acid dissociation
Define strength through dissociation rather than concentration, then use equilibrium position and common-ion suppression to explain why some later dissociations are limited.
How this is tested
- State that strong acids dissociate almost completely while weak acids dissociate only partly.
- Explain limited further dissociation by high H3O+ shifting the next equilibrium left.
- Compare acid samples through reaction stoichiometry rather than assuming equal ion concentrations.