IB skill practice

Analyse weak acid and weak base equilibria

Paper 1, Paper 2 5 marks Difficulty 4

Conjugate strength reasoning

A school extension laboratory compares a weak acid with its conjugate base. State the qualitative relationship between acid strength and conjugate-base strength. Use the labelled diagram, graph, equation, or table before answering. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.