Abstract
A simple, inexpensive, and environmentally friendly undergraduate laboratory experiment is described in which students use visible spectroscopy to determine a numerical value for an equilibrium constant, Kc. The experiment correlates well with the lecture topic of equilibrium even though the subject of the study is an acid-base indicator, bromothymol blue. The experiment gives excellent results and offers an inexpensive, zero-waste alternative to traditional equilibrium experiments, such as the Fe(SCN) 2+ equilibrium.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 637-639 |
| Number of pages | 3 |
| Journal | Journal of chemical education |
| Volume | 88 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 1 2011 |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Education
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Klotz, E., Doyle, R., Gross, E., & Mattson, B. (2011). The equilibrium constant for bromothymol blue: A general chemistry laboratory experiment using spectroscopy. Journal of chemical education, 88(5), 637-639. https://doi.org/10.1021/ed1007102