Redefinícia mólu – pozadie zmien v SI sústave a ich vplyv na vzdelávanie

Romana Schubertová; Ľubomír Held

doi:10.14712/18047106.212

Vol. 6 No. 2 (2015): sciED Discussion paper

The Redefinition of the Mole — the Background of Changes in the International System of Units and Their Impact on Education

Romana Schubertová, ¹ Ľubomír Held,

Univerzita Mateja Bela, Banská Bystrica

DOI: https://doi.org/10.14712/18047106.212

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Schubertová, R., & Held, Ľ. (2015). The Redefinition of the Mole — the Background of Changes in the International System of Units and Their Impact on Education. Scientia in Educatione, 6(2), 121-129. https://doi.org/10.14712/18047106.212

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Abstract

This article connects an ongoing discussion about the redefinition of basic units in the International System of Units with the teaching of chemistry. The “new” definition of mole is to be based on the precise determining of Avogadro constant. However, problems related to this new definition have roots in the history of the quantity amount of substance itself. One of the main problems is the fact that the amount of substance is the only discontinuous quantity (from among basic quantities) whose unit ‘mole’ was not introduced in the International System of Units on the basis of properties of the nature, but only by human agreement. Thus, the question is whether the mole is correctly placed among basic units of the International System of Units. This is one of the reason why this quantity is also interesting from the didactic point of view. It is discussed in this article.

References

Bara´nski, A. (2012). The Atomic Mass Unit, the Avogadro Constant, and the Mole: a Way to Understanding. Journal of Chemical Education, 89(1), 97–102. Search in Google Scholar
BIPM. (2013). Draft 9th Brochure. Dostupné z http://www.bipm.org/utils/common/pdf/si brochure draft ch123 Search in Google Scholar
De Bi`evre, P. (2007). Numerosity Versus Mass. Accreditation and Quality Assurance, 12(5), 221–222. Search in Google Scholar
De Bi`evre, P. (2011). Integer numbers and their ratios are key concepts in describing the interactions of atoms and molecules. Accreditation and Quality Assurance, 16(3), 117–120. Search in Google Scholar
Furio, C. (2000). Difficulties in Teaching the Concepts “Amount of Substance” and “Mole”. International Journal of Science Education, 22(12), 1 285–1 303. Search in Google Scholar
Held, Ľ. (1985). Osvojovanie pojmu „látkové množstvo": metodický list. Bratislava: Ústredný ústav pre vzdelávanie učiteľov. Search in Google Scholar
Held, Ľ. (2011). Konfrontácia koncepcií prírodovedného vzdelávania v Európe. Scientia in educatione, 2(1), 69–79. Search in Google Scholar
Hill, T. P. (2011). Criticisms of the proposed “new SI”. Accreditation and Quality Assurance, 16(8), 471–472. Search in Google Scholar
Hill, T. P. & Khruschov, V. V. (2013). Is there an objective need for an urgent redefinition of the kilogram and mole? Measurement Techniques, 56, 747–752. Search in Google Scholar
Johansson, I. (2011). The Mole is Not an Ordinary Measurement Unit. Accreditation and Quality Assurance, 16(8–9), 467–470. Search in Google Scholar
Leonard, B. P. (2011a). The avo (Av), gali (G), entity (ent) and exact dalton. Accreditation and Quality Assurance, 16(3), 173–174. Search in Google Scholar
Leonard, B. P. (2011b). Alternative interpretations of the mole and the ideal gas equation. Accreditation and Quality Assurance, 16, 577–581. Search in Google Scholar
Leonard, B. P. (2011c). Why the invariant atomic-scale unit, entity, is essential for understanding stoichiometry without ‘Avogadro anxiety’. Accreditation and Quality Assurance, 16(3), 133–141. Search in Google Scholar
Meinrath, G. (2011). The mole: definition versus practical use. Accreditation and Quality Assurance, 16(3), 167–170. Search in Google Scholar
Mills, I. M. (1995). Unity as a unit. Metrologia, 31, 537. Search in Google Scholar
Milton, M. J. T. (2011). Reasonable scope for change. Accreditation and Quality Assurance, 16(11), 575–576. Search in Google Scholar
Padilla, K. & Furio Mas, C. (2008). The Importance of History and Philosophy of Science in Correcting Distorted Views of “Amount of Substance” and “Mole” Concepts in Chemistry Teaching. Science and Education, 17(4), 403–424. Search in Google Scholar
Pavese, F. (2011). Some Reflection on the Proposed Redefinition of the Unit for the Amount of Substance and of Other SI Units. Accreditation and Quality Assurance, 16(8–9), 161–165. Search in Google Scholar
Petera, M. (1988). Mnohost a její měrné jednotky. Poznatky teoretické metrologie (teorie měření) využitelné k logickému a srozumitelnému výkladu kvantifikačních pojmů a výpočtů v chemii. Praha. Search in Google Scholar
Price, G. & De Bi`evre, P. (2009). Simple Principles for Metrology in Chemistry: Identifying and Counting. Accreditation and Quality Assurance, 14(6), 295–305. Search in Google Scholar
Price, G. (2010). Failures of Global Measurement System. Part 1: the Case of Chemistry. Accreditation and Quality Assurance, 15(7), 421–427. Search in Google Scholar
Price, G. (2011). A skeptic’s review of the New SI. Accreditation and Quality Assurance, 16(3), 121–132. Search in Google Scholar
Richard, P. & Ullrich, J. (2014). Joint CCM and CCU roadmap towards the redefinition of the SI in 2018. Dostupné z http://www.bipm.org/en/measurement-units/new-si/ Search in Google Scholar
Rocha-Filho, R. C. (2011). Reproposition of numerosity as the SI base quantity whose unit is the mole. Accreditation and Quality Assurance, 16(3), 155–159. Search in Google Scholar
Schubertová, R. (2014). Induktívne osvojovanie pojmu látkové množstvo [Dizertačná práca]. Trnava: Trnavská Univerzita. Search in Google Scholar
Slavíček, P. (2012). Avogadrova konstanta: 201 let počítání molekul. Chemické listy, 106, 1 023–1 028. Search in Google Scholar
Šramko, T. et al. (1991). Chémia 8: pre 8. ročník základnej školy. Bratislava: Slovenské Pedagogické Nakladateľstvo. Search in Google Scholar
Tifi, A. (2012). Dismissing the Mole Concept. La Chimica nella Scuola, 34(3), 368–371. Search in Google Scholar
Vicenová, H. & Ganajová, M. (2012). Chémia pre 9. ročník základnej školy a 4. ročník gymnázia s osemročným štúdiom. Bratislava: EXPOL PEDAGOGIKA. Search in Google Scholar

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[1] Bara´nski, A. (2012). The Atomic Mass Unit, the Avogadro Constant, and the Mole: a Way to Understanding. Journal of Chemical Education, 89(1), 97–102. Search in Google Scholar

[2] BIPM. (2013). Draft 9th Brochure. Dostupné z http://www.bipm.org/utils/common/pdf/si brochure draft ch123 Search in Google Scholar

[3] De Bi`evre, P. (2007). Numerosity Versus Mass. Accreditation and Quality Assurance, 12(5), 221–222. Search in Google Scholar

[4] De Bi`evre, P. (2011). Integer numbers and their ratios are key concepts in describing the interactions of atoms and molecules. Accreditation and Quality Assurance, 16(3), 117–120. Search in Google Scholar

[5] Furio, C. (2000). Difficulties in Teaching the Concepts “Amount of Substance” and “Mole”. International Journal of Science Education, 22(12), 1 285–1 303. Search in Google Scholar

[6] Held, Ľ. (1985). Osvojovanie pojmu „látkové množstvo": metodický list. Bratislava: Ústredný ústav pre vzdelávanie učiteľov. Search in Google Scholar

[7] Held, Ľ. (2011). Konfrontácia koncepcií prírodovedného vzdelávania v Európe. Scientia in educatione, 2(1), 69–79. Search in Google Scholar

[8] Hill, T. P. (2011). Criticisms of the proposed “new SI”. Accreditation and Quality Assurance, 16(8), 471–472. Search in Google Scholar

[9] Hill, T. P. & Khruschov, V. V. (2013). Is there an objective need for an urgent redefinition of the kilogram and mole? Measurement Techniques, 56, 747–752. Search in Google Scholar

[10] Johansson, I. (2011). The Mole is Not an Ordinary Measurement Unit. Accreditation and Quality Assurance, 16(8–9), 467–470. Search in Google Scholar

[11] Leonard, B. P. (2011a). The avo (Av), gali (G), entity (ent) and exact dalton. Accreditation and Quality Assurance, 16(3), 173–174. Search in Google Scholar

[12] Leonard, B. P. (2011b). Alternative interpretations of the mole and the ideal gas equation. Accreditation and Quality Assurance, 16, 577–581. Search in Google Scholar

[13] Leonard, B. P. (2011c). Why the invariant atomic-scale unit, entity, is essential for understanding stoichiometry without ‘Avogadro anxiety’. Accreditation and Quality Assurance, 16(3), 133–141. Search in Google Scholar

[14] Meinrath, G. (2011). The mole: definition versus practical use. Accreditation and Quality Assurance, 16(3), 167–170. Search in Google Scholar

[15] Mills, I. M. (1995). Unity as a unit. Metrologia, 31, 537. Search in Google Scholar

[16] Milton, M. J. T. (2011). Reasonable scope for change. Accreditation and Quality Assurance, 16(11), 575–576. Search in Google Scholar

[17] Padilla, K. & Furio Mas, C. (2008). The Importance of History and Philosophy of Science in Correcting Distorted Views of “Amount of Substance” and “Mole” Concepts in Chemistry Teaching. Science and Education, 17(4), 403–424. Search in Google Scholar

[18] Pavese, F. (2011). Some Reflection on the Proposed Redefinition of the Unit for the Amount of Substance and of Other SI Units. Accreditation and Quality Assurance, 16(8–9), 161–165. Search in Google Scholar

[19] Petera, M. (1988). Mnohost a její měrné jednotky. Poznatky teoretické metrologie (teorie měření) využitelné k logickému a srozumitelnému výkladu kvantifikačních pojmů a výpočtů v chemii. Praha. Search in Google Scholar

[20] Price, G. & De Bi`evre, P. (2009). Simple Principles for Metrology in Chemistry: Identifying and Counting. Accreditation and Quality Assurance, 14(6), 295–305. Search in Google Scholar

[21] Price, G. (2010). Failures of Global Measurement System. Part 1: the Case of Chemistry. Accreditation and Quality Assurance, 15(7), 421–427. Search in Google Scholar

[22] Price, G. (2011). A skeptic’s review of the New SI. Accreditation and Quality Assurance, 16(3), 121–132. Search in Google Scholar

[23] Richard, P. & Ullrich, J. (2014). Joint CCM and CCU roadmap towards the redefinition of the SI in 2018. Dostupné z http://www.bipm.org/en/measurement-units/new-si/ Search in Google Scholar

[24] Rocha-Filho, R. C. (2011). Reproposition of numerosity as the SI base quantity whose unit is the mole. Accreditation and Quality Assurance, 16(3), 155–159. Search in Google Scholar

[25] Schubertová, R. (2014). Induktívne osvojovanie pojmu látkové množstvo [Dizertačná práca]. Trnava: Trnavská Univerzita. Search in Google Scholar

[26] Slavíček, P. (2012). Avogadrova konstanta: 201 let počítání molekul. Chemické listy, 106, 1 023–1 028. Search in Google Scholar

[27] Šramko, T. et al. (1991). Chémia 8: pre 8. ročník základnej školy. Bratislava: Slovenské Pedagogické Nakladateľstvo. Search in Google Scholar

[28] Tifi, A. (2012). Dismissing the Mole Concept. La Chimica nella Scuola, 34(3), 368–371. Search in Google Scholar

[29] Vicenová, H. & Ganajová, M. (2012). Chémia pre 9. ročník základnej školy a 4. ročník gymnázia s osemročným štúdiom. Bratislava: EXPOL PEDAGOGIKA. Search in Google Scholar

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