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3.3 Yield and atom economy of chemical reactions

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Question 29

Sodium reacts with chlorine.

2Na+Cl2→2NaCl2\text{Na} + \text{Cl}_2 \rightarrow 2\text{NaCl}2Na+Cl2​→2NaCl

Relative atomic masses: Na=23\text{Na} = 23Na=23, Cl=35.5\text{Cl} = 35.5Cl=35.5.

A mass of 4.60 g of sodium reacts completely with excess chlorine.

What is the maximum mass of sodium chloride that can be made?

[1]
A

4.60 g4.60\ \text{g}4.60 g

B

9.20 g9.20\ \text{g}9.20 g

C

11.7 g11.7\ \text{g}11.7 g

D

7.10 g7.10\ \text{g}7.10 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

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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