AQA 'AS' and 'A' level Chemistry required practicals suitable for use with a colorimeter.

Practical 3

Investigation of how the rate of a reaction changes with temperature:
To investigate how the rate of the reaction of sodium thiosulfate with hydrochloric acid changes as the temperature of the reaction is changed.

Practical 7

Measuring the rate of reaction by an initial rate method:
An ‘Iodine Clock’ experiment: To investigate the reaction of iodide(V) ions with hydrogen peroxide in acidic solution and to determine the order of the reaction with respect to iodide ions.