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3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations

3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations

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Question 2
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A large synthetic polymer complex is made up of 333 identical copolymer chains.

The entire complex has an approximate relative formula mass (MrM_rMr​) of 270,000,000,000270,000,000,000270,000,000,000.

a.

What is the approximate relative formula mass of the polymer complex written in standard form?

[1]
b.

What is the approximate relative formula mass (MrM_rMr​) of each of the 333 individual copolymer chains?

[2]
Markscheme

3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations Questions

  1. GCSE
  2. /Chemistry
  3. /3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations

53 exam-style questions on AQA GCSE Chemistry 3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations, covering 3.1.1 Conservation of mass and balanced chemical equations, 3.1.2 Relative formula mass, 3.1.3 Mass changes when a reactant or product is a gas, and 3.1.4 Chemical measurements. Each one has a worked solution and a mark scheme showing where the marks go.

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