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Atoms and reactions

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Question 89

A bio-plastic precursor, Compound ZZZ, is synthesized as a platform chemical from biomass. Compound ZZZ contains only carbon, hydrogen, and oxygen. A 2.64 g2.64\text{ g}2.64 g sample of ZZZ is subjected to complete combustion in excess oxygen, yielding 5.28 g5.28\text{ g}5.28 g of carbon dioxide and 2.16 g2.16\text{ g}2.16 g of water.

In a separate mass spectrometry experiment, the relative molecular mass of ZZZ is determined to be 132.0 g mol−1132.0\text{ g mol}^{-1}132.0 g mol−1.

Calculate the molecular formula of ZZZ and suggest one possible structural formula for this compound.

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Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

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