Implementing an Inexpensive and Accurate Introductory Gas Density Activity with High School Students

• W. Patrick Cunningham ^[1] ; Christopher Joseph ^[1] ; Samantha Morey ^[1] ; Ana Santos Romo ^[1] ; Cullen Shope ^[1] ; Jonathan Strang ^[1] ; Kevin Yang ^[1]
  1. [1] Science Department, Claudia Taylor Johnson High School, United States
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 92, Nº 9, 2015, págs. 1507-1509
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A simplified activity examined gas density while employing cost-efficient syringes in place of traditional glass bulbs. The exercise measured the density of methane, with very good accuracy and precision, in both first-year high school and AP chemistry settings. The participating students were tasked with finding the density of a gas. The discovery activity facilitated their understanding of the basis of the table of atomic masses. This activity should provide instructors of pre-AP and AP chemistry classes with an acceptably precise and accurate single-lab-period investigation that functions either within the gas law unit or introduction to atomic theory and atomic masses.