A New Teaching Laboratory Experiment to Address the Effect of pH on Solubility
This paper presents a teaching experience involving an experiment based on the potentiostatic and electrochemical titration of a silver acetate solution with sodium hydroxide, a chemical system where at least three chemical equilibria are involved. It is known that natural samples are inherently com...
Guardado en:
| Autor principal: | |
|---|---|
| Otros Autores: | |
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Materias: | |
| Acceso en línea: | https://www.memoria.fahce.unlp.edu.ar/art_revistas/pr.14803/pr.14803.pdf http://chemeducator.org/bibs/0022001/22170070.html http://sedici.unlp.edu.ar/handle/10915/111526 |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 02480nab a2200229 a 4500 | ||
|---|---|---|---|
| 001 | aARTI14804 | ||
| 100 | |a Schmidt, Juan |u Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales | ||
| 700 | |a Ithuralde, Raúl Esteban |u Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales | ||
| 245 | 1 | 0 | |a A New Teaching Laboratory Experiment to Address the Effect of pH on Solubility |
| 041 | 7 | |2 ISO 639-1 |a en | |
| 300 | |a p.70-72 | ||
| 520 | 3 | |a This paper presents a teaching experience involving an experiment based on the potentiostatic and electrochemical titration of a silver acetate solution with sodium hydroxide, a chemical system where at least three chemical equilibria are involved. It is known that natural samples are inherently complex, and several different chemical equilibria are simultaneously present. That is why we believe the understanding of complex systems is essential for carrying out chemical analysis. Solubility of many compounds is highly dependent on pH and many of the exercises in the inorganic chemistry classroom are focused on calculating the solubility of different species at different pHs, most of the times using speciation coefficients. However, the dependence of solubility on pH is usually analyzed in a point by point basis. This experiment, which only requires equipment usually available in any general chemistry teaching laboratory, allows students to analyze both a complex system and the dynamic nature of solubility when pH changes continuously in time. It gives them the possibility to reach a broader understanding of simultaneous chemical equilibria. Thus, we consider it to be an excellent complement to typical chemistry exercises. | |
| 653 | |a Laboratories and Demonstrations | ||
| 653 | |a General chemistry | ||
| 653 | |a Chemical equilibria | ||
| 653 | |a Combined chemical equilibria | ||
| 856 | 4 | 0 | |u https://www.memoria.fahce.unlp.edu.ar/art_revistas/pr.14803/pr.14803.pdf |
| 856 | 4 | 1 | |u http://chemeducator.org/bibs/0022001/22170070.html |
| 856 | 4 | 1 | |u http://sedici.unlp.edu.ar/handle/10915/111526 |
| 952 | |u https://www.memoria.fahce.unlp.edu.ar/art_revistas/pr.14803/pr.14803.pdf |a MEMORIA ACADEMICA |b MEMORIA ACADEMICA | ||
| 773 | 0 | |7 nnas |t The chemical educator. |g Vol. 22 (2017),70-72 |v 22 |q 70-72 |d Boise : Emma Charlier, 2017 |x ISSN 1430-4171 | |
| 542 | 1 | |f Esta obra está bajo una licencia Creative Commons Atribución-NoComercial-CompartirIgual 4.0 Internacional |u http://creativecommons.org/licenses/by-nc-sa/4.0/ | |