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.
Test the basicity of toothpastes and give context to neutralisation reactions
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Give real-world relevance to neutralisation reactions by testing the basicity of toothpastes
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Strengthen students’ mental models of particles reacting in solution
Test learners’ ability to identify the spectra of given compounds and apply their understanding of infrared and NMR spectroscopy with this worksheet
Gweithgaredd gwers ar ysgrifennu fformiwlâu ar gyfer cyfansoddion anfetel gyda thaflen i fyfyrwyr
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