应用智能手机探究浓度对化学反应速率的影响——以“硫代硫酸钠和稀硫酸反应”为例

Use Smart Phone to Explore the Influence of Concentration on the Rate of Chemical Reaction: On the Improvement of the Experiment of “Sodium Thiosulfate and Dilute Sulfuric Acid”

基于新旧人教版普高化学教材的对比分析,以"硫代硫酸钠和稀硫酸反应"实验为例,介绍了应用智能手机探究浓度对化学反应速率影响的实验过程、实践效果、完善设想和改进反思,旨在为高中化学一线教师提供可用的教学参考。

Based on the comparative analysis of the old and new PEP editions of general high chemistry textbooks,taking the"sodium thiosulfate and dilute sulfuric acid reaction"experiment as an example,this paper introduces the use of smart phones to explore the experimental process,practical effects,and improvement of the effect of concentration on the chemical reaction rate.Conceive and improve the reflection,aiming to provide usable teaching reference for the frontline teachers of high school chemistry.