Drops of dilute acid and alkali are placed a few centimetres apart on a sheet of filter paper and allowed to spread out until they meet. A few drops of Universal indicator are then placed over the moist area of the filter paper and a band of colours showing the range of colours of the Universal indicator is seen on the paper.
This practical is part of our Chemistry for Non-Specialists collection.
2020-11-13T12:29:00Z
Which parts of the chemistry curriculum will your 16–18 students find useful to become a dietician?
2020-10-29T10:15:00Z
Follow these tips to engage students with learning processes
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.
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.
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