Smartphone spectroscopy: Beer–Lambert law

Picture of two glasses of blackcurrant drink

Source: © Shutterstock

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.

Learn about colours and how to use a smartphone, blackcurrant squash, a filter and a torch to measure changes in concentration across differently diluted squash drinks.

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