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The Determination of the Percent of Oxygen in Air Using a Gas Pressure Sensor

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James Gordon and Katherine Chancey

Division of Science and Mathematics, Central Methodist University, Fayette, MO 65248

J. Chem. Educ., 2005, 82 (2), p 286

DOI: 10.1021/ed082p286

Publication Date (Web): February 1, 2005

Section:

History, Education, and Documentation

Abstract

A new detection method is applied to a classic experiment in which gaseous atmospheric oxygen in a test tube is reacted with the iron in steel wool to produce rust. A gas pressure sensor interfaced to a calculator-based data collection system was used to measure the percent of oxygen in the air as the reaction proceeded. The results from the calculator-based experiment were compared to the results from a more traditional water-measurement experiment. The average percent of oxygen obtained using the calculator system was 19.4 ± 0.4%.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Calculator-Based Learning

Keywords (Subject):

Oxygen

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

A Simple Experiment To Measure the Content of Oxygen in the Air Using Heated Steel Wool
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Journal of Chemical Education2011 Article ASAP
- A Simple Experiment To Measure the Content of Oxygen in the Air Using Heated Steel Wool
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  Journal of Chemical Education2011 Article ASAP
  The typical experiment to measure the oxygen content in the atmosphere uses the rusting of steel wool inside a closed volume of air. Two key aspects of this experiment that make possible a successful measurement of the content of oxygen in the air are the ...
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Carbon Dioxide Fountain
Seong-Joo Kang and Eun-Hee Ryu , Mark Case
Journal of Chemical Education2007 84 (10), 1671
- Carbon Dioxide Fountain
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  Journal of Chemical Education2007 84 (10), 1671
  This article presents the development of a carbon dioxide fountain. The advantages of the carbon dioxide fountain are that it is odorless and uses consumer chemicals. This experiment also is a nice visual experiment that allows students to see evidence of ...
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