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3.3 Yield and atom economy of chemical reactions

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Question 19
H

Titanium is made by reacting titanium chloride with sodium.

TiCl4+4Na→Ti+4NaCl\mathrm{TiCl_4 + 4Na \rightarrow Ti + 4NaCl}TiCl4​+4Na→Ti+4NaCl

Relative formula mass (MrM_rMr​): TiCl4\mathrm{TiCl_4}TiCl4​ = 190

Relative atomic masses (ArA_rAr​): Na = 23, Ti = 48

What is the percentage atom economy for making titanium?

[1]
A

17.0 %

B

22.5 %

C

25.3 %

D

83.0 %

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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