A Novel Experiment for Fast and Simple Determination of the Oxygen Content in the Air
submitted by: Metodija Najdoski and Vladimir M. Petrusevski
Institut za hemija, Prirodno-Matematicki fakultet, Univerziteit Sv. Kiril i Metodij, Arhimedova 5, 1000 Skopje, Republic of Macedonia
checked by: M. Dale Alexander
Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003
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.
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Citation
Najdoski, Metodija; Petrusevski, Vladimir M. J. Chem. Educ.2000 77 1447.
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