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7.1 Carbon compounds as fuels and feedstock

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Question 27

A molecular-model kit contains 80 carbon and hydrogen atom pieces in total. A student uses some of the pieces to make a model of one alkane molecule. After the model is complete, 27 atom pieces are unused.

Calculate the molecular formula of the alkane.

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7.1 Carbon compounds as fuels and feedstock Questions

  1. GCSE
  2. /Chemistry
  3. /7.1 Carbon compounds as fuels and feedstock

91 exam-style questions on AQA GCSE Chemistry 7.1 Carbon compounds as fuels and feedstock, covering 7.1.1 Crude oil, hydrocarbons and alkanes, 7.1.2 Fractional distillation and petrochemicals, 7.1.3 Properties of hydrocarbons, and 7.1.4 Cracking and alkenes. Each one has a worked solution and a mark scheme showing where the marks go.

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