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Volmer, Dietrich A.; Curbani, Luana; Parker, Timothy A.; Garcia, Jennifer; Schultz, Linda D.; Borges, Endler Marcel – Journal of Chemical Education, 2017
This experiment describes a simple protocol for teaching acid-base titrations using potentiometry, conductivity, and/or photometry to determine end points without an added indicator. The chosen example examines the titratable acidity of a red wine with NaOH. Wines contain anthocyanins, the colors of which change with pH. Importantly, at the…
Descriptors: Biotechnology, Teaching Methods, Food, Chemistry
Luck, Linda A.; Blondo, Ryan M. – Journal of Chemical Education, 2012
Nonscience majors often believe that the concepts and techniques in chemistry have little relevance to someone outside the "ivy-covered walls of academia". The challenge for science instructors is to develop and implement lessons that present science in a way that will capture the interest of the nonscience major, while remaining rigorous enough…
Descriptors: Scientific Concepts, Chemistry, Teaching Methods, Laboratory Equipment