Abstract Aiming at the shortcomings in the teaching of the reaction of sodium and oxygen, the digital innovation experiment of handheld technology was applied, and the T-shaped tube of the innovative reaction device was independently designed to quantitatively explore the reaction of sodium and oxygen. This study used an oxygen sensor to measure the changes in oxygen content in a closed system to help students understand the difference between sodium reacting with oxygen in the air from a qualitative and quantitative perspective based on the tetra-representation model at room temperature and heating conditions. The oxygen, carbon dioxide and humidity sensors were used to explore the influence of carbon dioxide and water vapor in the air on sodium from a quantitative perspective, forming a scientific understanding of the reaction of sodium and oxygen.
CHEN De-Cheng, QIAN Yang-Yi, HUANG Qian-Ying, LIN Hui-Mei. Using Hand-Held Technology and T-Shaped Glass Tube to Explore the Reaction of Sodium with Oxygen in the Air[J]. Chinese Journal of Chemical Education, 2022, 43(9): 76-85.
