World Journal of Chemical Education
ISSN (Print): 2375-1665 ISSN (Online): 2375-1657 Website: http://www.sciepub.com/journal/wjce Editor-in-chief: Prof. V. Jagannadham
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World Journal of Chemical Education. 2018, 6(6), 230-238
DOI: 10.12691/wjce-6-6-1
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Advanced Treatment of Chemical Equilibria in the Prediction of the Time of Dissolution of Limestone in a Water Body by the Action of Acid Rain

Vitor Paulo Andrade da Silva1, , Pablo Gordiano A. Barbosa2, Thiago Coutinho Medeiros1 and Ronaldo Ferreira do Nascimento1,

1Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Fortaleza

2Instituto Federal de Educação, Ciência e Tecnologia do Ceará

Pub. Date: December 18, 2018

Cite this paper:
Vitor Paulo Andrade da Silva, Pablo Gordiano A. Barbosa, Thiago Coutinho Medeiros and Ronaldo Ferreira do Nascimento. Advanced Treatment of Chemical Equilibria in the Prediction of the Time of Dissolution of Limestone in a Water Body by the Action of Acid Rain. World Journal of Chemical Education. 2018; 6(6):230-238. doi: 10.12691/wjce-6-6-1

Abstract

In this study is reported an interdisciplinary approach to teaching chemistry using case studies seeking to stimulate the students in the learning process as well as to develop their critical thinking. The focuses were in chemical multiple equilibrium from an environmental problem based on the quantitative assessment of the dissolution process of limestone sediment containing in a water body by the action of acid rain and increasing of the CO2 atmospheric concentration. The variables considered were pluviometric average, CO2, SO2 and NO2 levels in the atmosphere as well as their dissolution equilibria and CaCO3 sediment precipitation. This study is an important teaching tool that can be applied in undergraduate and postgraduate chemistry courses with emphasis in Analytical and Environmental Chemistry, engaging students in active discussion about issues and problems inherent to practical applications.

Keywords:
environmental chemistry computer-based learning atmospheric chemistry computational chemistry acid-base chemical equilibrium

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