Adsorption of Additives in Cola Beverages: A Safe and Improved Experiment Exploring Beer's Law and Adsorption Process

Autor/inn/en	Wang, Jixin; Zhou, Wenshui; Yu, Mei; Zhu, Zheng; Li, Ying
Titel	Adsorption of Additives in Cola Beverages: A Safe and Improved Experiment Exploring Beer's Law and Adsorption Process
Quelle	In: Journal of Chemical Education, 99 (2022) 2, S.924-931 (8 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Wang, Jixin)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.1c00471
Schlagwörter	Chemistry; Science Experiments; Science Instruction; Scientific Concepts; Science Equipment; Laboratory Equipment; Regression (Statistics); Laboratory Safety; College Science; Undergraduate Study + Suchen Sie Ihr Suchwort? Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Laborausstattung; Regression; Regressionsanalyse; Grundstudium
Abstract	Cola beverages are widely consumed and popular among students; they can be used as safe reagents to replace toxic chemical dyes. In this study, a safe and improved experiment is described, which successfully demonstrates Beer's law and adsorption process using activated carbon as the adsorbent and cola as the adsorbate. The results of this study demonstrate that the use of cola has achieved good evaluation for the teaching of the Beer's law and the adsorption phenomenon. The potential learning outcomes of the experiment include the principles of spectrophotometry, operation of spectrophotometer, Beer's law and its limitations, derivation of linear regression equation, and construction of adsorption isotherms. This experiment can be used as a safe spectrophotometric protocol to determine the adsorption isotherms for undergraduate learning of analytical or general chemistry. (As Provided).
Anmerkungen	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
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01