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A Cool Drink: An Introduction to Concentrations

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Mindy Bedrossian

Strongsville High School, Strongsville, OH 44149

J. Chem. Educ., 2005, 82 (2), p 240A

DOI: 10.1021/ed082p240A

Publication Date (Web): February 1, 2005

Abstract

This Activity is a simple yet effective participatory event that uses powdered drink mix (Kool-Aid) in varying solutions to demonstrate different concentration levels to students. After performing a serial dilution, students then taste the solutions to gather further data by correlating concentration levels with their abilities to first discern the sweetness of the drink. A clear connection to how pollution levels are measured can be drawn by comparing ppm to recent EPA data on mercury levels. This Activity can also be used to discuss and calculate molarity in solutions as well.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Curriculum

Keywords (Feature):

JCE Classroom Activity

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Solutions / Solvents

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

"Only When You Know the Hazards..."
Erica K. Jacobsen
Journal of Chemical Education2005 82 (7), 969
- "Only When You Know the Hazards..."
  Erica K. Jacobsen
  Journal of Chemical Education2005 82 (7), 969
  Identifies and summarizes articles in this issue of the Journal that may be of particular interest to high school chemistry teachers.
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