Edexcel IAL Chemistry A2 14.21 Using titration curves for buffers and Ka
Edexcel IAL Chemistry A2 14.21 Using titration curves for buffers and Ka
Locate the flat buffer region or half-neutralisation point on the graph, then use pH = pKa or [H+] = Ka to calculate the required acid dissociation constant.
How this is tested
- Use half-neutralisation pH from a titration curve to calculate Ka or pKa.
- Identify the buffer region where a large volume of acid or base causes little pH change.