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The Visible Spectrum of Liquid Oxygen in the General Chemistry Laboratory

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Frazier Nyasulu , John Macklin and William Cusworth III

Department of Chemistry, University of Washington, Seattle, WA 98195-1700

J. Chem. Educ., 2002, 79 (3), p 356

DOI: 10.1021/ed079p356

Publication Date (Web): March 1, 2002

Section:

History, Education, and Documentation

Abstract

General chemistry experiments that address one or more aspects of molecular orbital theory are scarce. The measurement and interpretation of the visible spectrum of liquid oxygen fills this gap and extends molecular orbital theory described in the typical course. With some guidance from the instructor, students test three energy-level diagrams (hypotheses) to find the one that fits the measured spectrum.

Hazard: Liquid oxygen poses a safety hazard. See J. Chem. Educ. 2003, 80, 486.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

MO Theory

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Citing Articles

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This article has been cited by 4 ACS Journal articles (4 most recent appear below).

The Properties of Oxygen Investigated with Easily Accessible Instrumentation
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- The Properties of Oxygen Investigated with Easily Accessible Instrumentation
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  Journal of Chemical Education2010 87 (1), 40-44
  The physical properties of oxygen, in particular, the blue color of the liquid phase, the red glow of its chemiluminescence, and its paramagnetism as shown by the entrapment or deflection of liquid oxygen by a magnetic field, can be investigated in a ...
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The Singlet States of Molecular Oxygen
Jean-Pierre Puttemans and Georges Jannes
Journal of Chemical Education2004 81 (5), 639
- The Singlet States of Molecular Oxygen
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  Although the purpose of the article “The Visible Spectrum of Liquid Oxygen in the General Chemistry Laboratory” is an analysis of the two-molecules–one-photon absorption spectrum of oxygen, it nevertheless assigns arrangements of the electrons in an ...
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The Excited States of Molecular Oxygen
David Tudela and Vicente Fernández
Journal of Chemical Education2003 80 (12), 1381
- The Excited States of Molecular Oxygen
  David Tudela and Vicente Fernández
  Journal of Chemical Education2003 80 (12), 1381
  Identifies a mistake in the electronic structure of the first two excited states of oxygen.
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Liquid Oxygen Hazards
Jonathan Mitschele
Journal of Chemical Education2003 80 (5), 486
- Liquid Oxygen Hazards
  Jonathan Mitschele
  Journal of Chemical Education2003 80 (5), 486
  There is a risk of detonation if liquid oxygen comes into contact with grease; also Web addresses concerning the hazards of liquid oxygen.
  Abstract | Hi-Res PDF | PDF w/ Links