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
AU - Mattson, Bruce
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.
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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 -