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6.2 Quantitative analysis

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Question 85
F

A reaction has 100% atom economy but only 70% yield. Which explanation is possible?

[1]
A

The balanced equation forms a waste product

B

Some reactant remains unreacted

C

The catalyst was used up, so less product formed

D

Some product was converted into energy

Markscheme

6.2 Quantitative analysis Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Quantitative analysis

151 exam-style questions on Edexcel GCSE Chemistry 6.2 Quantitative analysis, covering 6.2.1 Concentration in mol dm⁻³ and titration calculations, 6.2.2 Percentage yield and why actual yield falls short, 6.2.3 Atom economy of a reaction, 6.2.4 Choosing a reaction pathway, and 6.2.5 Molar volume of gases and Avogadro's law. Each one has a worked solution and a mark scheme showing where the marks go.

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