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6.4 Chemical cells and fuel cells

6.4 Chemical cells and fuel cells

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Question 4
H

Some fuel cells use methanol instead of hydrogen. The overall reaction is: 2CH3OH+3O2→2CO2+4H2O\mathrm{2CH_{3}OH + 3O_{2} \rightarrow 2CO_{2} + 4H_{2}O}2CH3​OH+3O2​→2CO2​+4H2​O Relative atomic masses: H = 1, C = 12, O = 16. One mole of any gas occupies 24 dm3\mathrm{dm^{3}}dm3 at room temperature and pressure.

What volume of oxygen, at room temperature and pressure, reacts with 16.0 g of methanol?

[1]
A

8.00 dm38.00\,\mathrm{dm^{3}}8.00dm3

B

12.0 dm312.0\,\mathrm{dm^{3}}12.0dm3

C

18.0 dm318.0\,\mathrm{dm^{3}}18.0dm3

D

36.0 dm336.0\,\mathrm{dm^{3}}36.0dm3

Markscheme

6.4 Chemical cells and fuel cells Questions

  1. GCSE
  2. /Chemistry
  3. /6.4 Chemical cells and fuel cells

42 exam-style questions on Edexcel GCSE Chemistry 6.4 Chemical cells and fuel cells, covering 6.4.1 Chemical cells and fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.

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