Chlorine content of swimming pool water
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 to carry out as the volumes are determined by counting the drops but nevertheless 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 it. The...