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3.3 Yield and atom economy of chemical reactions

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Question 12

Sulfur dioxide reacts with oxygen to make sulfur trioxide.

2SO2+O2⇌2SO32\text{SO}_2 + \text{O}_2 \rightleftharpoons 2\text{SO}_32SO2​+O2​⇌2SO3​

Oxygen is in excess.

Relative atomic masses: O=16\text{O} = 16O=16, S=32\text{S} = 32S=32.

The process has a percentage yield of 85.0 %.

Calculate the mass of sulfur dioxide required to collect 34.0 g of sulfur trioxide.

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3.3 Yield and atom economy of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Yield and atom economy of chemical reactions

104 exam-style questions on AQA GCSE Chemistry 3.3 Yield and atom economy of chemical reactions, covering 3.3.1a Percentage yield, 3.3.1b Theoretical mass of a product, 3.3.2a Atom economy, and 3.3.2b Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.

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