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Atoms and reactions

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Question 86

A deep-sea diving gas cylinder contains a mixture of 12.0 g of helium gas (He\text{He}He) and 56.0 g of nitrogen gas (N2\text{N}_2N2​). The total pressure inside the cylinder is 180 kPa.

What is the partial pressure, in kPa\text{kPa}kPa, of nitrogen in this mixture?

A

108108108

B

72.072.072.0

C

103103103

D

148148148

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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