A clear, detailed visual resource explaining the continuous rates method using quenching and titration. Designed for A-Level Chemistry, the poster takes students through how samples are removed from a reacting mixture at regular time intervals, rapidly quenched and then analysed by titration.

The resource explains:

Why this method is suitable only for relatively slow reactions
Why the reaction continues while the sample is being withdrawn and must therefore be quenched rapidly
Three important quenching methods: rapid cooling, large dilution and acid/alkali neutralisation
How samples are taken at regular time intervals
How direct titration or back titration can be used to determine concentration
How the results are converted into a concentration–time graph
The practical limitations and sources of uncertainty associated with sampling and quenching

Particularly useful when teaching rates of reaction, kinetics, experimental methods and practical skills at A-Level.

Includes a classroom poster and animated version suitable for display, explanation, revision or embedding into presentations.