First Day in Organic Lab
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[1] Radford University
Radford University
Estados Unidos
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- Localización: Journal of chemical education, ISSN 0021-9584, Vol. 73, Nº 9 (September), 1996, págs. 852-854
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This experiment is designed to introduce students to the techniques of reflux, distillation, gas chromatography, and the determination of boiling point and melting point during one lab period. This lab is written so that it can be performed during the first day of lab in organic chemistry, without the students necessarily knowing any organic chemistry. The students answer questions, based upon their observation of the reflux and distillation apparatus, which are already assembled and in operation upon the students' arrival in the lab. Melting points and boiling points are performed by the students on unknown samples, and these unknowns were identified by comparison to a limited list of possibilities. A mixture of alcohols is analyzed by the students. Each student injects a sample under supervision, obtains a chromatogram, and from this, calculates peak area.
