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3.3 Yield and atom economy of chemical reactions

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Question 3

Carbon monoxide burns in oxygen to form carbon dioxide.

2CO+O2→2CO2\mathrm{2CO + O_2 \rightarrow 2CO_2}2CO+O2​→2CO2​

Relative formula masses (MrM_rMr​): CO\mathrm{CO}CO = 28.0 and CO2\mathrm{CO_2}CO2​ = 44.0

In one experiment, 14.0 g of carbon monoxide produced 18.0 g of carbon dioxide.

What was the percentage yield of carbon dioxide?

[1]
A

40.9 %

B

81.8 %

C

63.6 %

D

122 %

Markscheme

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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