A Level Chemistry 9701, topic 25.2

Partition coefficients: past paper questions

7 Cambridge A Level Chemistry 9701 questions on Partition coefficients (25.2) from 7 papers, 2023 to 2026. Open the paper or try a question free.

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Questions: 7
Papers: 7
Years: 2023 to 2026
Total marks: 90
Average per question: 12.9 marks
Largest question: 15 marks

By type: Structured 7

How hard the questions are

Recall0
Apply0
Analyse7
Not banded0

Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.

Command words

calculateApply6 questions
work out from given facts, figures or information
completeApply5 questions
suggestAnalyse5 questions
apply knowledge and understanding to situations where there are a range of valid responses in order to make proposals / put forward considerations
explainAnalyse4 questions
set out purposes or reasons / make the relationships between things evident / provide why and/or how and support with relevant evidence
stateRecall3 questions
express in clear terms
constructApply2 questions
defineRecall2 questions
give precise meaning
describeApply2 questions
state the points of a topic / give characteristics and main features
estimateApply2 questions
nameRecall2 questions

Where the questions come from

By year

20261
20252
20242
20232

By session

May/June5
Oct/Nov2

By paper

Paper 47

Questions on this topic

Showing 5 of 7, spread across the years. Open one to write your answer and have it marked.

Question 4May/June 2026, paper 42Structured6 marks
State what is meant by partition coefficient, $K_{pc}$ .
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Question 3May/June 2025, paper 41Structured13 marks
Chromium(III) hydroxide, ${C r (O H)}_{3}$ , is only slightly soluble in water. The value of the solubility product, $K_{s p}$ , of ${C r (O H)}_{3}$ is $1.0 \times 10^{- 33}$ at $298 K$ . Complete the expression for $K_{s p}$ of ${C r (O H)}_{3}$ .
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Question 2Oct/Nov 2023, paper 41Structured14 marks
Define $K_{w}$ mathematically by completing the expression.
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Question 3May/June 2025, paper 43Structured13 marks
Chromium(III) hydroxide, ${C r (O H)}_{3}$ , is only slightly soluble in water. The value of the solubility product, $K_{s p}$ , of ${C r (O H)}_{3}$ is $1.0 \times 10^{- 33}$ at $298 K$ . Complete the expression for $K_{s p}$ of ${C r (O H)}_{3}$ .
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Question 6May/June 2024, paper 43Structured15 marksHas a diagram
State what is meant by partition coefficient, $K_{p c}$ .
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