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The elephant in the lab

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Analysing limescale remover by acid–base titration

in pictures

The elephant’s toothpaste experiment

How to carry out the experiment discussed on pp. 14–15

The decomposition of hydrogen peroxide catalysed by potassium iodide can be such a vigorous reaction that the foam produced shoots rapidly out of the top of the vessel

• 500 cm3 measuring cylinder

• 30% hydrogen peroxide

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Previous

The elephant in the lab

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Analysing limescale remover by acid–base titration

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