AS & A Level Chemistry (9701)
Equilibria (incl. acids, pH, buffers, Ksp) Banker
43 questions · about 7% of the marks we indexed · examined in 9 of 9 sessions.
Questions by year
2026
- 2026 May/June · Paper 12 · Q131 markKc & Kp calculations
- 2026 May/June · Paper 12 · Q141 markLe Chatelier's principle
- 2026 May/June · Paper 22 · Q1 (e(i))2 marksIndustrial equilibria (Haber, Contact)
- 2026 May/June · Paper 22 · Q3 (a(ii))2 marksBrønsted–Lowry acids & bases
- 2026 May/June · Paper 42 · Q2 (d(i), d(ii), d(iii))4 marksSolubility product (Ksp) & common ion effect
- 2026 May/June · Paper 42 · Q4 (a, b, c)6 marksPartition coefficients
2025
- 2025 Oct/Nov · Paper 12 · Q121 markLe Chatelier's principle
- 2025 Oct/Nov · Paper 12 · Q131 markIndustrial equilibria (Haber, Contact)
- 2025 Oct/Nov · Paper 22 · Q2 (e(i), e(ii), e(iii))6 marksDynamic equilibrium · Le Chatelier's principle
- 2025 Oct/Nov · Paper 42 · Q3 (a(i), a(ii), b(i), b(ii), b(iii), c(i), c(ii), d(i), d(ii), d(iii))12 marksBrønsted–Lowry acids & bases · Buffers · Solubility product (Ksp) & common ion effect · pH, Ka, Kw & strong/weak acids
- 2025 Oct/Nov · Paper 52 · Q1 (c(ii), e(iii), f(iii))4 marksDynamic equilibrium · Kc & Kp calculations · Le Chatelier's principle
- 2025 May/June · Paper 12 · Q41 markKc & Kp calculations
- 2025 May/June · Paper 12 · Q81 markIndustrial equilibria (Haber, Contact)
- 2025 May/June · Paper 42 · Q5 (a(i), a(ii), b(i), b(ii), c, d(i), d(ii))11 marksBrønsted–Lowry acids & bases · Buffers · Solubility product (Ksp) & common ion effect · pH, Ka, Kw & strong/weak acids
2024
- 2024 Oct/Nov · Paper 12 · Q131 markLe Chatelier's principle
- 2024 Oct/Nov · Paper 12 · Q141 markKc & Kp calculations
- 2024 Oct/Nov · Paper 42 · Q3 (a(i), a(ii), a(iii), b(ii), b(iii), b(iv), b(v))15 marksBrønsted–Lowry acids & bases · Buffers · Solubility product (Ksp) & common ion effect · pH, Ka, Kw & strong/weak acids
- 2024 May/June · Paper 12 · Q131 markLe Chatelier's principle
- 2024 May/June · Paper 12 · Q141 markKc & Kp calculations
- 2024 May/June · Paper 22 · Q3 (a, b(i), b(ii))9 marksDynamic equilibrium · Kc & Kp calculations · Le Chatelier's principle
- 2024 May/June · Paper 42 · Q6 (a(i), a(ii), b(i), b(ii), c(i), c(ii))10 marksBrønsted–Lowry acids & bases · Buffers · pH, Ka, Kw & strong/weak acids
- 2024 May/June · Paper 52 · Q2 (d(ii), e(iv))3 marksKc & Kp calculations · Le Chatelier's principle
2023
- 2023 Oct/Nov · Paper 12 · Q151 markKc & Kp calculations
- 2023 Oct/Nov · Paper 12 · Q171 markLe Chatelier's principle
- 2023 Oct/Nov · Paper 12 · Q261 markBrønsted–Lowry acids & bases
- 2023 Oct/Nov · Paper 22 · Q2 (b, c, f(i))6 marksBrønsted–Lowry acids & bases · Kc & Kp calculations · Le Chatelier's principle
- 2023 Oct/Nov · Paper 22 · Q3 (a(ii))2 marksBrønsted–Lowry acids & bases
- 2023 Oct/Nov · Paper 42 · Q1 (e(iii))1 markBrønsted–Lowry acids & bases
- 2023 Oct/Nov · Paper 42 · Q2 (a, b(i), b(ii), c, d, e(i), e(ii))11 marksBuffers · Solubility product (Ksp) & common ion effect
- 2023 May/June · Paper 12 · Q131 markLe Chatelier's principle
- 2023 May/June · Paper 12 · Q141 markKc & Kp calculations
- 2023 May/June · Paper 22 · Q4 (b)2 marksLe Chatelier's principle
- 2023 May/June · Paper 42 · Q3 (e(i), e(ii))2 marksSolubility product (Ksp) & common ion effect
- 2023 May/June · Paper 52 · Q2 (a(ii), a(iii), b(vi))4 markspH, Ka, Kw & strong/weak acids
2022
- 2022 Oct/Nov · Paper 12 · Q81 markKc & Kp calculations
- 2022 Oct/Nov · Paper 22 · Q1 (c(i))1 markBrønsted–Lowry acids & bases
- 2022 Oct/Nov · Paper 22 · Q2 (c(ii))1 markLe Chatelier's principle
- 2022 Oct/Nov · Paper 42 · Q4 (a(i), a(ii), a(iii), b(i), b(ii), b(iii), b(iv))9 marksBrønsted–Lowry acids & bases · Buffers · Solubility product (Ksp) & common ion effect · pH, Ka, Kw & strong/weak acids
- 2022 May/June · Paper 12 · Q131 markLe Chatelier's principle
- 2022 May/June · Paper 12 · Q141 markKc & Kp calculations
- 2022 May/June · Paper 22 · Q3 (a(i), a(ii), a(iii), a(iv), c)7 marksDynamic equilibrium · Kc & Kp calculations
- 2022 May/June · Paper 42 · Q1 (b(i), b(ii))4 marksSolubility product (Ksp) & common ion effect
- 2022 May/June · Paper 42 · Q4 (c(i), c(ii), c(iii))7 marksBuffers
No questions match this filter.
Find the full paper on the official Cambridge past-papers page or ask your school. “Paper 42” means Paper 4, variant 2.
Similar questions
Questions that test the same subtopic in different years. Practise them together to master one skill.
Solubility product (Ksp) & common ion effect Banker8 questions · 8/9 sessions
Buffers 7 questions · 7/9 sessions
Le Chatelier's principle Banker14 questions · 8/9 sessions
- 2026 May/June · Paper 12 Q14
- 2025 Oct/Nov · Paper 12 Q12
- 2025 Oct/Nov · Paper 22 Q2
- 2025 Oct/Nov · Paper 52 Q1
- 2024 Oct/Nov · Paper 12 Q13
- 2024 May/June · Paper 12 Q13
- 2024 May/June · Paper 22 Q3
- 2024 May/June · Paper 52 Q2
- 2023 Oct/Nov · Paper 12 Q17
- 2023 Oct/Nov · Paper 22 Q2
- 2023 May/June · Paper 12 Q13
- 2023 May/June · Paper 22 Q4
- 2022 Oct/Nov · Paper 22 Q2
- 2022 May/June · Paper 12 Q13
Kc & Kp calculations Banker13 questions · 9/9 sessions
- 2026 May/June · Paper 12 Q13
- 2025 Oct/Nov · Paper 52 Q1
- 2025 May/June · Paper 12 Q4
- 2024 Oct/Nov · Paper 12 Q14
- 2024 May/June · Paper 12 Q14
- 2024 May/June · Paper 22 Q3
- 2024 May/June · Paper 52 Q2
- 2023 Oct/Nov · Paper 12 Q15
- 2023 Oct/Nov · Paper 22 Q2
- 2023 May/June · Paper 12 Q14
- 2022 Oct/Nov · Paper 12 Q8
- 2022 May/June · Paper 12 Q14
- 2022 May/June · Paper 22 Q3
pH, Ka, Kw & strong/weak acids 6 questions · 6/9 sessions
Brønsted–Lowry acids & bases 11 questions · 7/9 sessions
Dynamic equilibrium 4 questions · 3/9 sessions
Industrial equilibria (Haber, Contact) 3 questions · 3/9 sessions
Subtopics
| Subtopic | Marks indexed | Sessions |
|---|---|---|
| Solubility product (Ksp) & common ion effect Banker | 31 | 8/9 |
| Buffers | 31 | 7/9 |
| Le Chatelier's principle Banker | 22 | 8/9 |
| Kc & Kp calculations Banker | 22 | 9/9 |
| pH, Ka, Kw & strong/weak acids | 19 | 6/9 |
| Brønsted–Lowry acids & bases | 16 | 7/9 |
| Dynamic equilibrium | 8 | 3/9 |
| Partition coefficients Rare | 6 | 1/9 |
| Industrial equilibria (Haber, Contact) | 4 | 3/9 |