110 cm3 of carbon dioxide and 90 cm3 of argon, each at 298 K and 100 kPa, were placed into an evacuated flask of volume 0.50 dm3. What is the pressure of the gas mixture in the flask at 298 K?
200 kPa200\text{ kPa}200 kPa
80.0 kPa80.0\text{ kPa}80.0 kPa
40.0 kPa40.0\text{ kPa}40.0 kPa
22.0 kPa22.0\text{ kPa}22.0 kPa
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.