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A novel experiment for fast and simple determination of the oxygen content in the air

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Metodija Najdoski and Vladimir M. Petrusevski

Institut za hemija, Prirodno-Matematicki fakultet, Univerziteit Sv. Kiril i Metodij, Arhimedova 5, 1000 Skopje, Republic of Macedonia

M. Dale Alexander

Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003

J. Chem. Educ., 2000, 77 (11), p 1447

DOI: 10.1021/ed077p1447

Publication Date (Web): November 1, 2000

Section:

History, Education, and Documentation

Abstract

The reaction between nitric oxide (NO) and oxygen is used for determination of the oxygen content in the air. The nitrogen dioxide thus produced is dissolved in water. The volume decrease of the gas enables quick and accurate enough determination of the O₂ content. The results of 20 measurements give %O₂ = 21.04 ± 0.63.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Demonstrations

Keywords (Feature):

Tested Demonstrations

Keywords (Subject):

Gases

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

The Determination of the Percent of Oxygen in Air Using a Gas Pressure Sensor
James Gordon and Katherine Chancey
Journal of Chemical Education2005 82 (2), 286
- The Determination of the Percent of Oxygen in Air Using a Gas Pressure Sensor
  James Gordon and Katherine Chancey
  Journal of Chemical Education2005 82 (2), 286
  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 ...
  Abstract | Hi-Res PDF | PDF w/ Links
Fractional Distillation of Air and Other Demonstrations with Condensed Gases
Maria Oliver-Hoyo and William L. Switzer III, Robert Eierman
Journal of Chemical Education2005 82 (2), 251
- Fractional Distillation of Air and Other Demonstrations with Condensed Gases
  Maria Oliver-Hoyo and William L. Switzer III, Robert Eierman
  Journal of Chemical Education2005 82 (2), 251
  This demonstration builds upon the commonly performed liquefaction of air not only to show the presence of nitrogen and oxygen, but also the presence of two other components, carbon dioxide and water. Several extensions are suggested: one to show boiling ...
  Abstract | Hi-Res PDF | PDF w/ Links