ERIC Number: EJ1442860
Record Type: Journal
Publication Date: 2023-Feb
Pages: 4
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: EISSN-1938-1328
A Modest Change to a Freshman Kinetics Experiment That Reduces Lab Time without Compromising Student Results
Journal of Chemical Education, v100 n2 p974-977 2023
We report here a successful adaptation of lab videos used during remote instruction to a kinetics experiment reported in this Journal in 2007. In the in-person lab, students now record their rate data on their cell phone cameras and then collect their data from the videos for their postlab reports; previously, they acquired the data in real time from the spectrophotometer reading and a stopwatch. We have found that increasing the concentration of the bleach, which speeds up the rate faster than data can be directly recorded in real time (1) does not affect the reaction order and (2) decreases lab time.
Descriptors: Chemistry, College Freshmen, College Science, Laboratory Experiments, Kinetics, Data Collection, Video Technology, Handheld Devices, Photography, Spectroscopy, Time on Task, Measurement Equipment
Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A