A short resource on back titrations - when they're used and a worked example of using a back titration to calculate the concentration.

A word document detailing frequency diagrams and frequency polygons. I use this with students I tutor privately but it could be used with students in class. You will need graph paper for the students to draw their frequency polygons. This could be used for KS3 or a low attaining GCSE group. It assumes students know how to work out the midpoint of two numbers.

Suitable for A Level Chemistry. Describes what is used to test for aqueous halide ions and why testing the precipitates' solubility in ammonia is important. Originally created for CCEA Chemistry but could easily be adapted for other exam boards.