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 |
|---|---|
| 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 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Education
Cite this
The equilibrium constant for bromothymol blue : A general chemistry laboratory experiment using spectroscopy. / Klotz, Elsbeth; Doyle, Robert; Gross, Erin M.; Mattson, Bruce M.
In: Journal of Chemical Education, Vol. 88, No. 5, 01.05.2011, p. 637-639.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The equilibrium constant for bromothymol blue
T2 - A general chemistry laboratory experiment using spectroscopy
AU - Klotz, Elsbeth
AU - Doyle, Robert
AU - Gross, Erin M.
AU - Mattson, Bruce M.
PY - 2011/5/1
Y1 - 2011/5/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79954544546&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79954544546&partnerID=8YFLogxK
U2 - 10.1021/ed1007102
DO - 10.1021/ed1007102
M3 - Article
AN - SCOPUS:79954544546
VL - 88
SP - 637
EP - 639
JO - Journal of Chemical Education
JF - Journal of Chemical Education
SN - 0021-9584
IS - 5
ER -