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Difficulties in teaching the concepts of 'amount of substance' and 'mole'
Authors:CarloS Furió  RafaeL Azcona  Jenaro Guisasola  Mary Ratcliffe
Institution:1. Department of Didactics of Experimental and Social Sciences, University of Valencia;2. 'Talaia-Hondarribia' High-School;3. Department of Applied Physics I, University of the Basque Country, Spain;4. Research and Graduate School of Education, University of Southampton, UK
Abstract:In this study the origin and evolution of the meanings of the concepts 'amount of substance' and 'mole' are described. Serious disagreements about these concepts amongst chemistry teachers and the recommendations of the international scientific community are identified. Attention is also drawn to the didactic implications that these epistemological difficulties may have for the teaching of chemistry.
Keywords:
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