Skip to content

Course home

Sign up

Amount of substance

EasyMediumHard
123456789101112131415161718192021
Question 19

A sample of 180 cm3 of nitrogen gas and 120 cm3 of helium gas, each at 310 K and 105 kPa, are transferred into a sealed, evacuated vessel of volume 0.75 dm3. What is the pressure of the gas mixture in the vessel at 310 K?

A

25.2 kPa25.2\text{ kPa}25.2 kPa

B

42.0 kPa42.0\text{ kPa}42.0 kPa

C

263 kPa263\text{ kPa}263 kPa

D

420 kPa420\text{ kPa}420 kPa

Markscheme

Amount of substance Questions

  1. A Level
  2. /Chemistry
  3. /Amount of substance

79 exam-style questions on AQA A Level Chemistry Amount of substance, covering Relative atomic mass and relative molecular mass, The mole and the Avogadro constant, The ideal gas equation, Empirical and molecular formula, and Balanced equations and associated calculations. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank