plumiHigh-resolution mass spectrometry: Edexcel International A Level Chemistry questions
Edexcel International A Level Chemistry past-paper questions on 15.E.1 High-resolution mass spectrometry, 2019–2025, with mark schemes and examiner’s reports where available.
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All 8 questions on High-resolution mass spectrometry, as a list
- June 2025, Unit 4, Q7 (1 mark): High resolution mass spectrometers can give peak data accurate to four decimal places. An organic compound X has a molecular ion peak at m / z = 60.0210 . The a
- October 2023, Unit 4, Q12 (1 mark): Polymer waste may be disposed of by incineration. At a plant carrying out this process with poly(propene), a waste gas was produced that was thought to be eithe
- January 2023, Unit 5, Q17(d) (2 marks): Compound G is a structural isomer of A which also has a benzene ring and one side-chain. The mass spectrum of G has a peak at m / z = 107. Deduce the structure
- June 2022, Unit 4, Q2 (1 mark): The high resolution mass spectrum of an organic compound X has a molecular ion peak with m / z = 58.0417 and another peak with m / z = 29.0390. Which compound i
- January 2022, Unit 4, Q20(b)(ii) (1 mark): State how you might use your answer to (b)(i) and a mass spectrum of compound A to prove that compound A is an isomer of hexanoic acid. (1)
- January 2022, Unit 5, Q7 (1 mark): The mass spectrum of the compound shown is obtained using a high resolution mass spectrometer. O What is the mass to charge ratio, m / z, of the molecular ion o
- June 2021, Unit 4, Q12 (1 mark): The high resolution mass spectrum of a compound X has a molecular ion peak at m / z = 44.0632. Accurate relative atomic masses are given in the table. Element R
- January 2021, Unit 4, Q17(d)(i) (1 mark): The accurate relative atomic masses, Ar , of the three elements in E are shown in the table. Element Ar hydrogen 1.0078 carbon 12.0000 oxygen 15.9949 E contains
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