Abstract: This study presents an improved approach to the acetone iodination reaction experiment by employing handheld technology. The reaction vessel was positioned directly above the light sensing port of a smartphone, enabling real-time monitoring of light intensity changes over time. This setup facilitates precise measurement of reaction time and automatic data collection, with results aligning with existing literature. Compared to traditional spectrophotometric methods, this novel approach is rapid, efficient, portable, and cost-effective. It allows each student to conduct experiments using an individual device, thereby enhancing student engagement and fostering essential competencies in the field of chemistry.

Key words: Smartphones, Light sensors, Acetone iodization reactions, Rate equations