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3.3 Yield and atom economy of chemical reactions

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Question 5
F

A student makes a salt by reacting an acid with a metal oxide.

Which of these would cause the percentage yield to be less than 100 %?

[1]
A

Adding a catalyst so that the reaction finishes in a shorter time

B

Measuring the reactants with a balance that reads to 0.01 g

C

Stirring the mixture so that the reactants dissolve more quickly

D

Leaving some of the product stuck to the filter paper after filtering

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

39 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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