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Atoms and reactions

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Question 41

Which sample contains the greatest number of molecules?

A

50.0 g of O250.0\text{ g of } \text{O}_250.0 g of O2​

B

45.0 g of N245.0\text{ g of } \text{N}_245.0 g of N2​

C

75.0 g of CO275.0\text{ g of } \text{CO}_275.0 g of CO2​

D

26.0 g of CH426.0\text{ g of } \text{CH}_426.0 g of CH4​

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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