Determinations of Carbon Dioxide by Titration:: New Experiments for General, Physical, and Quantitative Analysis Courses

• S. K. Crossno ^[1] ; L. H. Kalbus ^[1] ; G. E. Kalbus ^[1]
  1. [1] California State University
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 73, Nº 2 (February), 1996, págs. 175-176
• Idioma: inglés
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• Resumen

  • The determination of mixtures containing NaOH and Na2CO3 or Na2CO3 and NaHCO3 by titration is a common experiment in a Quantitative Analysis course. This determination can be adapted for the analysis of CO2 within a sample. The CO2 is released and absorbed in a solution containing excess NaOH. Titration with standard HCl leads to the determination of CO2 present in the sample. A number of interesting experiments in Quantitative Analysis, General and/or Physical Chemistry have been developed. Among these are the following determinations: CO2 content in carbonated beverages, carbonate and bicarbonate in various real life samples, and the molecular weight of CO2.