Development and Implementation of a Simple, Engaging Acid Rain Neutralization Experiment and Corresponding Animated Instructional Video for Introductory Chemistry Students
| Autor: | Patrick Lynch, Gregory Lowry, James Budarz, Craig J. Yennie, Wenlei Zhu, Li-Qiong Wang, Danielle Rand |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Green chemistry
Multimedia 010405 organic chemistry business.industry 05 social sciences 050301 education Sulfuric acid General Chemistry Conductivity Equivalence point computer.software_genre 01 natural sciences Column (database) Neutralization 0104 chemical sciences Education chemistry.chemical_compound Calcium carbonate chemistry Acid rain Process engineering business 0503 education computer |
| Zdroj: | Journal of Chemical Education. 93:722-728 |
| ISSN: | 1938-1328 0021-9584 |
| Popis: | Here we describe an acid rain neutralization laboratory experiment and its corresponding instructional video. This experiment has been developed and implemented for use in the teaching laboratory of a large introductory chemistry course at Brown University. It provides a contextually relevant example to introduce beginner-level students with little or no acid–base chemistry background to the basic theories of solution chemistry. First, students measure the conductivity of water samples with different ionic compositions, serving as an introduction to the conductivity of solutions. Second, to simulate the neutralization reaction between acid rain and limestone as it occurs in nature, students pass a sulfuric acid solution through a column containing calcium carbonate and monitor the conductivity of the resulting solution. Students are then required to graph conductivity versus volume of sulfuric acid added to the calcium carbonate column and use the resulting plot to calculate the equivalence point. Additio... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|