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Exploration of SO2 Scrubbers: An Environmental Chemistry Project
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Abstract
The remediation of acid rain by SO2 scrubbing is integrated into a laboratory project appropriate for first-year chemistry students. By burning a small amount of sulfur and bubbling the gas produced through distilled water, the student first observes one of the reactions that produces acid rain. The student then tests four different reagents (calcium carbonate, calcium sulfate, sodium carbonate, and potassium hydroxide) for their ability to neutralize SO2(g), and then makes a conclusion about which could serve as potential SO2 scrubbers for coal-burning industries. Their observations are rationalized with basic concepts such as pH, acid–base reactions, relative acidities, neutralization reactions, and solubility.
Keywords (Audience):
First-Year Undergraduate / GeneralKeywords (Domain):
Environmental ChemistryKeywords (Pedagogy):
Collaborative / Cooperative LearningKeywords (Subject):
Acids / BasesCiting Articles
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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Classroom Illustrations of Acidic Air Pollution Using Nylon Fabric
Dean J. Campbell, Emily A. Wright, Mardhia O. Dayisi, Michael R. Hoehn, Branden F. Kennedy, and Brian M. MaxfieldJournal of Chemical Education2011 88 (4), 387-391Classroom Illustrations of Acidic Air Pollution Using Nylon Fabric
Dean J. Campbell, Emily A. Wright, Mardhia O. Dayisi, Michael R. Hoehn, Branden F. Kennedy, and Brian M. MaxfieldJournal of Chemical Education2011 88 (4), 387-391In 1970, deposition of fly ash from a coal burning power plant in downtown Peoria produced minor damage in the vicinity of its smokestack, including runs in ladies nylon stockings. In this article, we review the historical event and discuss the chemistry ...
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History
- Received: August 03, 2009
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