Química a microescala en la enseñanza experimental usando una microbalanza de cristal de cuarzo
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Issue Date
2022-10-01
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Microscale chemistry in experimental teaching using a quartz crystal microbalancePublisher
Facultad de Quimica, UNAMJournal
Educacion QuimicaDOI
10.22201/fq.18708404E.2022.4.0.81489Additional Links
https://www.scielo.org.mx/scielo.php?pid=S0187-893X2022000400086&script=sci_abstract&tlng=enAbstract
This study proposes a laboratory practice at the university level that allows active participation and helps understand the concepts of physical-chemical properties and molecular structures with experimentation as a teaching-learning strategy for microscale chemistry. For it, a quartz crystal microbalance is used to detect variations of small amounts of mass. The microbalance is built with low-cost electronic components, an Arduino UNO board, and an OLED screen to determine the evaporation time at room temperature of pure substances and mixtures with different degrees of volatility: Propan-2-ol, ethanol, and water. And with its use, reduce the cost of the chemical reagents used, the amount of waste generated, and reduce the time in the experiments to allow greater participation in the debate and discussion between students and teachers during practice.Type
info:eu-repo/semantics/articleRights
info:eu-repo/semantics/openAccessAttribution-NonCommercial-ShareAlike 4.0 International
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spaISSN
0187893XEISSN
18708404ae974a485f413a2113503eed53cd6c53
10.22201/fq.18708404E.2022.4.0.81489
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- Creative Commons