Electrolysis using a microscale Hoffman apparatus

Four glass containers with bromothymol blue indicator solution displaying different colours, including red, yellow, green and blue

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Investigate the electrolysis of sodium sulfate solution using a microscale Hoffman apparatus in this class practical. Includes kit list and safety instructions.

In this experiment, students use a microscale Hoffman apparatus to carry out the electrolysis of sodium sulfate solution. They then consider ways of testing for the gases they have collected.

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