Why do chemists use maths? Mostly, because it’s good for describing patterns clearly and because it allows chemists to put a number on things: rather than saying something increases we’d like to be able to say by how much.

This 5-lesson course aims to give you some pointers to and some practice in those bits of maths that come up frequently in A-level Chemistry. It also shows you the calculating skills you need to practise so that you can find answers quickly and check they are reasonable.

1.   Moles and reacting masses

2.   Solutions

3.   Ideal gas equation

4.   Empirical and Molecular formulae

5.   Ionic equations

6.   More complex calculations (including titration calculations).

Chemistry calculations might seem daunting at first but don’t be put off: like anything else that is worth doing, you will get good at them through practice.