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Partition coefficients: CAIE A‑Level Chemistry questions

Every CAIE A-Level Chemistry exam question on 25.2 Partition coefficients, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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312 questions

  1. Q6(a)(i)

    June 2024 · Paper 4

    1 mark25.2 Partition coefficients
    The whole paper ↗
    June 2024 Paper 4, question 6(a)(i): State what is meant by partition coefficient, Kpc. [1]

  2. Q6(a)(ii)

    June 2024 · Paper 4

    2 marks25.2 Partition coefficients
    The whole paper ↗
    June 2024 Paper 4, question 6(a)(ii): The partition coefficient, Kpc, for a compound, X, between carbon disulfide, CS2, and water is 10.5. 1.85 g of X is dissolved in water and made up to 100.0 cm3

  3. Q1(a)(i)

    Specimen · Paper 4

    2 marks25.2 Partition coefficients
    The whole paper ↗
    Specimen Paper 4, question 1(a)(i): State what is meant by partition coefficient. [2] Ammonia is soluble in both water and organic solvents. An aqueous solution of ammonia is shaken with the immis

  4. Q1(a)(ii)

    Specimen · Paper 4

    2 marks25.2 Partition coefficients
    The whole paper ↗
    Specimen Paper 4, question 1(a)(ii): Calculate the partition coefficient, Kpc, of ammonia between trichloromethane and water. Show your working. Kpc = [2]

  5. Q1(a)(iii)

    Specimen · Paper 4

    2 marks25.2 Partition coefficients
    The whole paper ↗
    Specimen Paper 4, question 1(a)(iii): Butylamine, C4H9NH2, is also soluble in both water and organic solvents. Suggest how the numerical value of Kpc of butylamine between trichloromethane and water
All 5 questions on Partition coefficients, as a list
  1. June 2024, Paper 4, Q6(a)(i) (1 mark): State what is meant by partition coefficient, Kpc. [1]
  2. June 2024, Paper 4, Q6(a)(ii) (2 marks): The partition coefficient, Kpc, for a compound, X, between carbon disulfide, CS2, and water is 10.5. 1.85 g of X is dissolved in water and made up to 100.0 cm3
  3. Specimen, Paper 4, Q1(a)(i) (2 marks): State what is meant by partition coefficient. [2] Ammonia is soluble in both water and organic solvents. An aqueous solution of ammonia is shaken with the immis
  4. Specimen, Paper 4, Q1(a)(ii) (2 marks): Calculate the partition coefficient, Kpc, of ammonia between trichloromethane and water. Show your working. Kpc = [2]
  5. Specimen, Paper 4, Q1(a)(iii) (2 marks): Butylamine, C4H9NH2, is also soluble in both water and organic solvents. Suggest how the numerical value of Kpc of butylamine between trichloromethane and water

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