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5.1 Monitoring chemical reactions

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Question 7
F

Aluminium burns in oxygen to make aluminium oxide.

4Al+3O2→2Al2O3 \mathrm{4Al + 3O_{2} \rightarrow 2Al_{2}O_{3}} 4Al+3O2​→2Al2​O3​

Relative atomic mass (ArA_rAr​): O = 16.0 Al = 27.0

What is the maximum mass of aluminium oxide that can be made from 5.40 g of aluminium?

[1]
A

5.10 g

B

10.2 g

C

20.4 g

D

40.8 g

Markscheme

5.1 Monitoring chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /5.1 Monitoring chemical reactions

57 exam-style questions on OCR GCSE Chemistry 5.1 Monitoring chemical reactions, covering 5.1.1 The technique of titration, 5.1.2 Theoretical mass, percentage yield and atom economy, 5.1.3 Concentration of a solution in mol/dm3, 5.1.4 Concentration calculations and titration results, 5.1.5 Molar gas volume and volumes of gases in reactions, and 5.1.6 Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.

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