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Chlorine in swimming pools

This practical uses the redox reaction between chlorine and iodide ions to releases iodine which is then reacted with thiosulfate ions. It is a simple experiment for you to carry out as the volumes are determined by counting the drops but nevertheless it gives quite an accurate result and could be performed by the side of a pool. Chlorine is an oxidizing agent and is added to swimming pool water in order to disinfect...

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