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

• Metodija Najdoski ^[2] ; Vladimir M. Petrusevski ^[2] ; M. Dale Alexander ^[1]
  1. [1] New Mexico State University

     New Mexico State University

     Estados Unidos

     
  2. [2] Univerziteit Sv. Kiril i Metodij
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 77, Nº 11 (November), 2000, págs. 1447-1447
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • 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.