The Chemical Educator
ISSN: 1430-4171 (electronic version)
Abstract Volume 20
(2015) pp 25-29
Investigation of Intermolecular Interactions by Determination of the Heat of Mixing of Organic Liquids: An Undergraduate Organic Chemistry Experiment
Wilkes Honors College of Florida Atlantic University, 5353 Parkside Drive, Jupiter, FL 33458, firstname.lastname@example.org
Published: 6 February 2015
Abstract. In a hypothesis-based experiment students consider the structure of several common organic solvents and predict whether the mixing of each pair is going to be an exothermic or an endothermic process based on the types of intermolecular interactions present in each. Next, they test their predictions by monitoring the temperature change in the course of the actual mixing. Most students correctly predicted the outcomes of the individual experiments with an exception of toluene, which they treated as a typical non-polar compound.
Key Words: Laboratories and Demonstrations; organic chemistry; thermodynamics; intermolecular interactions; active learning; heat of mixing
(*) Corresponding author. (E-mail: email@example.com)
A list of chemicals and supplies, student handout and typical student results are available as supplemental material. (203 KB).