Learn how to identify the composition of unknown substances
Chemists often have to identify the composition of unknown substances. This experiment involves identifying the cations and anions in various salt solutions.
This practical is part of our Classic chemistry experiments collection.
2021-01-20T03:00:00Z
How to demonstrate the Beer–Lambert law using your smartphone as a light meter
Use your smartphone to measure changes in concentration across different concentrations of squash at home or in the classroom. Use your results to predict the concentration of an unknown dilution of squash.
2020-12-10T10:23:00Z
Both you and your students can gain a lot from participating in science competitions besides winning
Use this tutorial, including a video demonstration, to help post-16 students learn about equilibrium, the Gibbs free energy and the feasibility of reactions.
Try this tutorial with accompanying videos to help teach students on post-16 courses about the concept of entropy and the second law of thermodynamics.
Use this tutorial with videos to explore how the chance behaviour of particles and energy determines the direction and reversibility of chemical reactions.
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