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Demonstration of the catalytic decomposition of hydrogen peroxide
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Abstract
Catalytic decomposition is demonstrated by placing hydrogen peroxide solutions in a one liter graduated cylinder and adding soap, food coloring, and potassium iodide. Released oxygen is trapped by the soap producing bubbles. The volume of bubbles is proportional to the concentration of hydrogen peroxide. Chloride and bromide do not cause decomposition. Increased reactant temperature increases the volume of bubbles formed.
Keywords (Audience):
Elementary / Middle School ScienceKeywords (Domain):
DemonstrationsKeywords (Feature):
Tested DemonstrationsKeywords (Subject):
OxygenCiting Articles
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This article has been cited by 5 ACS Journal articles (5 most recent appear below).
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Thomas S. Kuntzleman and Bruce W. BaldwinJournal of Chemical Education2011 Article ASAPWe believe that students should have opportunities—early and often—to learn about science and math activities in fun and recreational ways. As a result, we try to provide many science enrichment activities to the surrounding community. In doing so, we ...
Canisius College Summer Science Camp: Combining Science and Education Experts To Increase Middle School Students’ Interest in Science
Phillip M. Sheridan, Steven H. Szczepankiewicz, Christopher R. Mekelburg, and Kara M. SchwabelJournal of Chemical Education2011 Article ASAPCanisius College Summer Science Camp: Combining Science and Education Experts To Increase Middle School Students’ Interest in Science
Phillip M. Sheridan, Steven H. Szczepankiewicz, Christopher R. Mekelburg, and Kara M. SchwabelJournal of Chemical Education2011 Article ASAPThe Canisius College Summer Science Camp is a successful and effective annual outreach program that specifically targets middle school students in an effort to increase their interest in science. Five broadly defined science topics are explored in a camp-...
A Quick and Accurate Oxygen-Based Pressure-Sensor Assay for Catalase Activity
Megan E. Lewis , Rebecca M. Levine , John T. York and W. Tandy GrubbsJournal of Chemical Education2009 86 (10), 1227A Quick and Accurate Oxygen-Based Pressure-Sensor Assay for Catalase Activity
Megan E. Lewis , Rebecca M. Levine , John T. York and W. Tandy GrubbsJournal of Chemical Education2009 86 (10), 1227A method is described for investigating the catalytic decomposition of hydrogen peroxide by using a computer-interfaced pressure sensor to follow the evolution of O2(g) inside a closed reaction vessel. The pressure sensor and accompanying glassware are ...
Applications of Reaction Rate
Kevin CunninghamJournal of Chemical Education2007 84 (3), 430Applications of Reaction Rate
Kevin CunninghamJournal of Chemical Education2007 84 (3), 430This article presents an assignment in which students are to research and report on a chemical reaction whose increased or decreased rate is of practical importance. Specifically, students are asked to represent the reaction they have chosen with an ...
A Modified Demonstration of the Catalytic Decomposition of Hydrogen Peroxide
Carlos Alexander Trujillo , Edward Senkbeil , Paul KrauseJournal of Chemical Education2005 82 (6), 855A Modified Demonstration of the Catalytic Decomposition of Hydrogen Peroxide
Carlos Alexander Trujillo , Edward Senkbeil , Paul KrauseJournal of Chemical Education2005 82 (6), 855A safer and cheaper version of the popular catalyzed decomposition of hydrogen peroxide demonstration commonly called the “Elephants’ Toothpaste” is presented. Hydrogen peroxide is decomposed in the presence of a surfactant by the enzyme catalase ...
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- Received: August 03, 2009
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