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Mass spectrometry: CAIE A‑Level Chemistry questions

Every CAIE A-Level Chemistry exam question on 22.2 Mass spectrometry, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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312 questions

  1. Q40

    June 2024 · Paper 1

    1 mark22.2 Mass spectrometry
    The whole paper ↗
    June 2024 Paper 1, question 40: The relative atomic mass of antimony is 121.76. Antimony has two isotopes. The mass numbers of the two isotopes differ by two. The isotope with the lower mass n

  2. Q6(c)(i)

    June 2024 · Paper 2

    2 marks22.2 Mass spectrometry
    The whole paper ↗
    June 2024 Paper 2, question 6(c)(i): Part of the mass spectrum for Q is shown in Fig. 6.4. Only peaks with m / e greater than 198 are shown. 100 relative abundance x 198 199 200 201 m / e Fig. 6.4

  3. Q3

    Specimen · Paper 1

    1 mark22.2 Mass spectrometry
    The whole paper ↗
    Specimen Paper 1, question 3: The mass spectrum of a sample of lithium shows that it contains two isotopes, 6Li and 7Li. The isotopic abundances are shown in the table. isotope isotopic abun

  4. Q5(a)

    Specimen · Paper 2

    2 marks22.2 Mass spectrometry
    The whole paper ↗
    Specimen Paper 2, question 5(a): A molecule of X contains 6 carbon atoms. Demonstrate that this is correct using information from Fig 5.1. Show your working. [2]

  5. Q5(b)

    Specimen · Paper 2

    1 mark22.2 Mass spectrometry
    The whole paper ↗
    Specimen Paper 2, question 5(b): Suggest the molecular formula of X using information from Fig. 5.1. [1]

  6. Q5(c)

    Specimen · Paper 2

    1 mark22.2 Mass spectrometry
    The whole paper ↗
    Specimen Paper 2, question 5(c): Suggest the molecular formula of the fragment of X at m / e = 31. [1]
All 6 questions on Mass spectrometry, as a list
  1. June 2024, Paper 1, Q40 (1 mark): The relative atomic mass of antimony is 121.76. Antimony has two isotopes. The mass numbers of the two isotopes differ by two. The isotope with the lower mass n
  2. June 2024, Paper 2, Q6(c)(i) (2 marks): Part of the mass spectrum for Q is shown in Fig. 6.4. Only peaks with m / e greater than 198 are shown. 100 relative abundance x 198 199 200 201 m / e Fig. 6.4
  3. Specimen, Paper 1, Q3 (1 mark): The mass spectrum of a sample of lithium shows that it contains two isotopes, 6Li and 7Li. The isotopic abundances are shown in the table. isotope isotopic abun
  4. Specimen, Paper 2, Q5(a) (2 marks): A molecule of X contains 6 carbon atoms. Demonstrate that this is correct using information from Fig 5.1. Show your working. [2]
  5. Specimen, Paper 2, Q5(b) (1 mark): Suggest the molecular formula of X using information from Fig. 5.1. [1]
  6. Specimen, Paper 2, Q5(c) (1 mark): Suggest the molecular formula of the fragment of X at m / e = 31. [1]

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