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Kuntzleman, Thomas S.; Bunker, Kasey R.; Bartlett, Ashlee A. – Journal of Chemical Education, 2019
An experiment is described that uses easily obtained materials (glow sticks, chalk, and acetone or alcohol) to separate the dyes contained in glow sticks that actively emit chemiluminescent light. The experiment is very easy to carry out, making it amenable for students to perform in laboratory or outreach settings. The separation occurs fast…
Descriptors: Chemistry, Science Instruction, Light, Laboratory Experiments
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Williamson, J. Charles; Kuntzleman, Thomas S.; Kafader, Rachael A. – Journal of Chemical Education, 2013
A data set of 7,381 molecular iodine vapor rovibronic transitions between the X and B electronic states has been prepared for an advanced undergraduate spectroscopic analysis project. Students apply standard theoretical techniques to these data and determine the values of three X-state constants (image omitted) and four B-state constants (image…
Descriptors: Science Instruction, Chemistry, College Science, Spectroscopy
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Howder, Collin R.; Groen, Kyle D.; Kuntzleman, Thomas S. – Journal of Chemical Education, 2010
A hands-on activity and demonstration, both applicable to the 2010 National Chemistry Week theme of Behind the Scenes with Chemistry, are presented. In the activity, students compare and contrast the properties of heat conductors and heat insulators. During the demonstration, students learn that water absorbed by a superabsorbent polymer can…
Descriptors: Chemistry, Hands on Science, Science Activities, Demonstrations (Educational)