In these scenes, the Year 11 chemistry students performed an experiment linked with the topic ‘Rates of Reaction’. The aim of this experiment was to investigate the effect of sodium thiosulfate concentration on the rate of reaction of sodium thiosulfate solution with hydrochloric acid. The reaction, which produces solid sulphur (yellow or white), was followed by measuring the time needed for the reaction mixture to become opaque. The students’ results were analyzed graphically to determine the mathematical relationship between the reactant concentration and the reaction rate.
During this experiment, students also maintained safe laboratory practices and achieved proper experimental skills in scientific writing, record-keeping, graph plotting, and teamwork. Well done to all Year 11 Chemistry students!
Mr. J Borg
Chemistry Teacher