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3.2 Methods of separating and purifying substances

3.2 Methods of separating and purifying substances

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Question 41

In the industrial ABE (acetone-butanol-ethanol) fermentation process, anaerobic bacteria produce a liquid mixture containing acetone (boiling point 56 ∘C56\,^{\circ}\text{C}56∘C), ethanol (boiling point 78 ∘C78\,^{\circ}\text{C}78∘C), and butanol (boiling point 117 ∘C117\,^{\circ}\text{C}117∘C) dissolved in water.

Suggest a physical separation technique that can be used to obtain pure acetone from this liquid mixture.

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3.2 Methods of separating and purifying substances Questions

  1. GCSE
  2. /Chemistry
  3. /3.2 Methods of separating and purifying substances

107 exam-style questions on Edexcel GCSE Chemistry 3.2 Methods of separating and purifying substances, covering 3.2.1 Pure substances and mixtures, 3.2.2 Techniques for separating mixtures, 3.2.3 Paper chromatography and Rf values, and 3.2.4 Making water potable. Each one has a worked solution and a mark scheme showing where the marks go.

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