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6.2 Organic chemistry

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Question 42

Pent-1-ene, C5H10\mathrm{C_5H_{10}}C5​H10​, forms an addition polymer. One molecule of this polymer contains 18 000 carbon atoms.

Relative atomic mass (ArA_rAr​): C = 12.0 H = 1.0

Calculate the relative formula mass of this polymer molecule.

Show your working.

[3]
Markscheme

6.2 Organic chemistry Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Organic chemistry

131 exam-style questions on OCR GCSE Chemistry 6.2 Organic chemistry, covering 6.2.1 Crude oil and fractional distillation, 6.2.2 Cracking and dependence on hydrocarbons, 6.2.3 Functional groups and homologous series, 6.2.4 Reactions of alkanes, alkenes and alcohols, 6.2.5 Addition polymerisation and repeat units, 6.2.6 Naturally occurring polymers, 6.2.7 Chemical cells and fuel cells, and 6.2.8 Condensation polymerisation and how to make one. Each one has a worked solution and a mark scheme showing where the marks go.

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