Edexcel IAL Chemistry A2 14.18 Action of a buffer solution
Edexcel IAL Chemistry A2 14.18 Action of a buffer solution
Identify the conjugate pair present, write the equation that removes added H+ or OH- and explain why the concentration ratio changes only slightly.
How this is tested
- Write equations showing the conjugate base removing added H+ to form the acid.
- Write equations showing the weak acid or conjugate acid removing added OH-.
- Link resistance to pH change to large reservoirs and an almost unchanged acid-base ratio.