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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
Vogelezang, Michiel – School Science Review, 2012
Noticing the presence of colourless crystals in a glass of white wine was the starting point for some simple experiments to identify their chemical nature. The author did not succeed in identifying the chemical, but learned about the presence of an acid-base indicator. In retrospect, he was aware of the special chemical way he had considered the…
Descriptors: Chemistry, Science Experiments, Science Instruction, Scientific Concepts
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
Peer reviewed
Flannery, Maura C. – American Biology Teacher, 1990
Discussed are applications of biochemistry. Included are designed drugs, clever drugs, carcinogenic structures, sugary wine, caged chemicals, biomaterials, marine chemistry, biopolymers, prospecting bacteria, and plant chemistry. (CW)
Descriptors: Biochemistry, Biology, Chemistry, College Science