Revisiting Molar Mass, Atomic Mass, and Mass Number: Organizing, Integrating, and Sequencing Fundamental Chemical Concepts

• Stephen DeMeo ^[1]
  1. [1] City University of New York

     City University of New York

     Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 83, Nº 4, 2006, pág. 617
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • It is often confusing for introductory chemistry students to differentiate between molar mass, atomic mass, and mass number as well as to conceptually understand these ideas beyond a surface level. One way to improve understanding is to integrate the concepts, articulate their relationships, and present them in a meaningful sequence. The integrated conception, what is described as the "atomic mass conception", involves the description and sequencing of these three concepts based upon IUPAC terminology and findings from educational researchers. The sequencing and detail of these concepts run counter to how these three ideas are presented in popular textbooks.