Self-assessment tests and teaching resources
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. |
| Sto01 | Relative mass |
| Sto02 | Oxidation state |
| Sto03 | Moles |
| Sto04 | Avogadro's number |
| Sto05 | Moles and particles |
| Sto06 | Formulation |
| Sto07 | Empirical formula |
| Sto08 | Mass and moles relationships |
| Sto09 | Reacting mass and moles |
| Sto10 | Reaction types |
| Sto12 | Reacting particles in chemical reactions |
| Sto13 | Conservation of mass in chemical reactions |
| Sto14 | Definitions |
| Sto15 | Experimental data |
| Sto16 | Determination - relative mass of active metals |
| Sto17 | Equations |
| Sto18 | Balancing coefficients in equations |
| Sto19 | Reacting particles in balanced equations |
| Sto20 | Conservation of mass in reactions |
| Sto21 | Avogadro's law and gas volumes |
| Sto32 | Calculating solution concentration |
| Sto33 | Solution preparation by dissolution and dilution |
| Sto34 | Reactions in solution |
| Sto35 | Acid - base titrations |
| Sto36 | Back-titration |
| Sto39 | Experimental and theoretical yield in chemical reactions |
| Sto40 | Experimental inaccuracies |
| Teaching resources | |
| STR01 | Classification of matter |
| STR02 | Mole concept |
| STR03 | Solution preparation |
| STR04 | Titration |
| STR05 | Heating magnesium |
Internal video links
IB Chemistry syllabus videos (first exams May 2025), by Colourful Solutions.
Relative mass and the mole concept
Balancing chemical equations
Mass to mass calculations
Mass to mass calculations in chemical equations
Relative formula mass 1 - covalent compounds
Relative formula mass 2 - ionic compounds
Relative formula mass 3 - formulae with brackets
Relative formula mass 4 - water of crystallisation
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
State symbols
Changes of state
Temperature and kinetic energy
Perfect crystals
The mole concept
The number of particles in a mole
Relative mass
Molar mass
Solving moles problems
Identifying mole ratios
Empirical and molecular formula
Empirical formula and percentage composition
Determining molecular formula from percentage data
Determining molecular formula from combustion data
Solving solutions problems
Distinguish between solution, solvent and solute
Converting concentrations
Avogadro's law of gas volumes