Media type: E-Article Title: Difficulties in teaching the concepts of 'amount of substance' and 'mole' Contributor: Furió, CarloS.; Azcona, RafaeL.; Guisasola, Jenaro; Ratcliffe, Mary Published: Informa UK Limited, 2000 Published in: International Journal of Science Education, 22 (2000) 12, Seite 1285-1304 Language: English DOI: 10.1080/095006900750036262 ISSN: 0950-0693; 1464-5289 Origination: Footnote: