Skip to content

Course home

Sign up

3.3 Yield and atom economy of chemical reactions

EasyMediumHard
1234567891011121314
Question 12
H

Magnesium burns in oxygen to form magnesium oxide.

2Mg+O2→2MgO\mathrm{2Mg + O_2 \rightarrow 2MgO}2Mg+O2​→2MgO

Relative atomic masses (ArA_rAr​): O = 16, Mg = 24

What is the maximum theoretical mass of magnesium oxide that can be made from 3.6 g of magnesium?

[1]
A

3.0 g

B

4.8 g

C

6.0 g

D

12.0 g

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.

Question bank