Self-assessment tests
The following tests can be set for a specific number of questions and the results will be posted to your email. An analysis of incorrect responses is included.
| Description | |
| Stoichiometry | All areas of the quantitative chemistry topic. |
| sto21 | Avogadro's law and gas volumes |
| sto22 | Gas molar volume |
| sto23 | Gas volume and relative mass |
| sto24 | Gas density |
| sto25 | Boyle's law (pressure and volume) |
| sto26 | Charles' law (volume and temperature) |
| sto27 | The equation of state |
| sto28 | The ideal gas equation, PV=nRT |
| sto29 | Dalton's law of partial pressures |
| sto30 | Partial pressure in gas mixtures |
| sto31 | Limiting gas volume in chemical reactions |
| Teaching resources | |
| Everything | All things are pure substances or mixtures |
External video links
The following videos have been prepared for the IB Chemistry syllabus (first exams May 2025), by Richard Thornley, Mike Sugiyama Jones and others.
Atoms, elements, compounds and mixtures
Identifying atoms, elements, compounds and mixtures
The kinetic theory of matter
The kinetic theory of matter
The kinetic theory of matter