Sodium carbonate solution is added to a burette containing a little hydrochloric acid and Universal Indicator. The two solutions react, with effervescence, and the liquid in the burette shows a ‘rainbow’ of all the colours of Universal Indicator from red through orange, yellow, green and blue to purple.
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
Discover the importance of chemistry in everyday eating experiences with this collection of edible experiments.
2021-02-01T10:01:00Z
A simple board game to help students avoid the common misconception that there is only one set path through the rock cycle
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.
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