A Modest Change to a Freshman Kinetics Experiment that Reduces Lab Time without Compromising Student Results

• DOI: 10.1021/acs.jchemed.2c00744
• Publication Date: 2022-12-15T16:53:42Z
• Authors: Arlene A. Russell; Jennifer R. Casey; Kristopher K. Barr
• Keywords: Stopwatch; Bleach; Affect

We report here a successful adaptation of lab videos used during remote instruction to kinetics experiment reported in this Journal 2007. In the in-person lab, students now record their rate data on cell phone cameras and then collect from for postlab reports; previously, they acquired real time spectrophotometer reading stopwatch. have found that increasing concentration bleach, which speeds up faster than can be directly recorded (1) does not affect reaction order (2) decreases time.