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03bbd59
NotesChemistry HLTopic 6.1
Unit 6 · Reactivity 3: What are the mechanisms of chemical change? · Topic 6.1

IB Chemistry HL — Proton transfer reactions

Topic 6.1 of IB Chemistry covers Proton transfer reactions, which is part of Unit 6: Reactivity 3: What are the mechanisms of chemical change?. Students explore key concepts including Brønsted–Lowry acids and bases, The pH scale and strong vs weak acids and bases, Reactions of acids, and more. A strong understanding of proton transfer reactions is essential for IB Chemistry HL exams and builds the foundation for connected topics across the syllabus.

Higher Level students should use this topic hub as a map: start with the shared sub-topics, then follow the HL-only extensions and exam-skill links where this topic asks for deeper analysis.

Exam technique guidePractice questions

What you'll learn in Topic 6.1

  • 6.1.1 Brønsted–Lowry acids and bases
  • 6.1.2 The pH scale and strong vs weak acids and bases
  • 6.1.3 Reactions of acids
  • 6.1.4 Ka, Kb, pKa and the pH of weak acids (HL)
  • 6.1.5 Buffers, pH curves and indicators (HL)
Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 6.1 Proton transfer reactions

6.1.1

Brønsted–Lowry acids and bases

Notes
6.1.2

The pH scale and strong vs weak acids and bases

Notes
6.1.3

Reactions of acids

Notes
6.1.4

Ka, Kb, pKa and the pH of weak acids (HL)

Notes
6.1.5

Buffers, pH curves and indicators (HL)

Notes

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Topic 6.1 Proton transfer reactions forms a core part of Unit 6: Reactivity 3: What are the mechanisms of chemical change? in IB Chemistry HL. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

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