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.
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Resources used by some of the activity providers for outreach work as part of the Chemistry for All project. Resources for careers related activities, STEM club activities and support for longer projects.
2020-11-02T06:41:00Z
Ask your 16–18 students to take a closer look at ammonium nitrate and enthalpy
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