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3.3 Yield and atom economy of chemical reactions

3.3 Yield and atom economy of chemical reactions

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Question 8

Metal X\text{X}X is extracted from an oxide of metal X\text{X}X by reaction with carbon.

The equation for the reaction is:

XO+C→X+CO \text{XO} + \text{C} \rightarrow \text{X} + \text{CO} XO+C→X+CO

The percentage atom economy for obtaining metal X\text{X}X by this method is 69.9%.

Calculate the relative atomic mass (ArA_{\text{r}}Ar​) of metal X\text{X}X.

Relative atomic masses (ArA_{\text{r}}Ar​): C=12\text{C} = 12C=12, O=16\text{O} = 16O=16

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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

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

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