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Atoms and reactions

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Question 37

A sample of 1.60 g of methanol, CH3OH\text{CH}_3\text{OH}CH3​OH (Mr=32.0M_r = 32.0Mr​=32.0), is completely burned in oxygen according to the equation:

2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l) 2\text{CH}_3\text{OH(l)} + 3\text{O}_2\text{(g)} \rightarrow 2\text{CO}_2\text{(g)} + 4\text{H}_2\text{O(l)} 2CH3​OH(l)+3O2​(g)→2CO2​(g)+4H2​O(l)

Which volume of oxygen gas, in dm3\text{dm}^3dm3, is required for this complete combustion at room temperature and pressure (RTP)?

[Molar volume of gas at RTP = 24.0 dm3 mol-1]

A

0.800.800.80

B

1.801.801.80

C

1.201.201.20

D

3.603.603.60

Markscheme

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

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