数字化实验探究次氯酸光照分解反应

Digital Experiments to Explore Hypochlorous Acid Photolysis Reaction

针对教材和文献中次氯酸光解实验的不足之处,利用数字化实验从光照条件、氯水浓度、传感器、实验表征等方面探究次氯酸光解实验成功的关键因素,测得溶解氧、pH和氯离子浓度的数据为支持多重表征次氯酸光解过程,帮助学生通过实验促进对次氯酸分解反应的理解,发展学生证据推理与模型认知、实验探究与创新意识等化学学科核心素养。

In view of the deficiencies of hypochlorous acid photolysis experiments in textbooks and literature,digital experiments are used to explore the key factors for the success of hypochlorous acid photolysis experiments from the aspects of light conditions,chlorine water concentration,sensors,and experimental characterization.The measured data of dissolved oxygen,pH and chloride ion concentrations are used to support the multiple characterization of hypochlorous acid photolysis process.Help students promote their understanding of hypochlorous acid decomposition reaction through experiments and develop students’core literacy in chemistry disciplines such as evidence reasoning and model cognition,experimental inquiry and innovation awareness.