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6.2 Quantitative analysis

6.2 Quantitative analysis

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Question 33

The industrial synthesis of ethanol is carried out by reacting ethene with steam as shown in the equation below:

C2H4(g)+H2O(g)→C2H5OH(g) \text{C}_2\text{H}_4\text{(g)} + \text{H}_2\text{O(g)} \rightarrow \text{C}_2\text{H}_5\text{OH(g)} C2​H4​(g)+H2​O(g)→C2​H5​OH(g)

The atom economy for this reaction is 100%.

State how the equation shows that the atom economy is 100%.

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Markscheme

6.2 Quantitative analysis Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Quantitative analysis

157 exam-style questions on Edexcel GCSE Chemistry 6.2 Quantitative analysis, covering 6.2.1 Concentration in mol dm⁻³ and titration calculations, 6.2.2 Percentage yield and why actual yield falls short, 6.2.3 Atom economy of a reaction, 6.2.4 Choosing a reaction pathway, and 6.2.5 Molar volume of gases and Avogadro's law. Each one has a worked solution and a mark scheme showing where the marks go.

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