A Colorful Demonstration to Visualize and Inquire into Essential Elements of Chemical Equilibrium

Autor/inn/en	Eilks, Ingo; Gulacar, Ozcan
Titel	A Colorful Demonstration to Visualize and Inquire into Essential Elements of Chemical Equilibrium
Quelle	In: Journal of Chemical Education, 93 (2016) 11, S.1904-1907 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.6b00252
Schlagwörter	Undergraduate Students; Science Education; Chemistry; Demonstrations (Educational); Science Instruction; Visualization; Teaching Methods; Color; Foreign Countries; Germany + Suchen Sie Ihr Suchwort? Naturwissenschaftliche Bildung; Chemie; Demonstrationsexperiment; Demonstrationsmodell; Demonstrationsunterricht; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Visualisation; Visualisierung; Teaching method; Lehrmethode; Unterrichtsmethode; Colour; Farbbezeichnung; Farbe; Ausland; Deutschland
Abstract	One of the topics that chemistry teachers have a great challenge introducing is chemical equilibrium. When being introduced to chemical equilibrium, many students have difficulties in understanding that some reactions do not go to completion, as this contrasts most of their supposed prior experiences in chemistry lessons. Students may also struggle with the existence of dynamic equilibrium in which reactants and products constantly transform into each other in a nonvisible manner. The goal of this general chemistry demonstration is to provide teachers with an effective method to help introduce the difficult idea of chemical equilibrium as well as connect chemical equilibrium to acid-base chemistry more successfully. This demonstration will allow students to develop a better understanding of the dynamic nature of chemical equilibrium and Le Chatelier's Principle by letting them interpret measured pH values and observe correlated color changes before and after the addition of different reagents that shift the chemical equilibrium. (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	2020/1/01