2.8. Physical Properties of Alkenes and Cycloalkenes
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Scattering and Absorption of Light The effects of passing light through a colloidal suspension of milk in water and through a solution of copper sulfate are shown.
Identification of Secondary Metabolites in Citrus Fruit Using Gas Chromatography and Mass SpectroscopyJean-Michel Lavoie, Esteban Chornet, and André Pelletier Using a simple extraction and a gas chromatograph coupled with a mass spectrometer, this protocol allows students in analytical or organic chemistry to quantify and qualify monoterpenes from the peels of limes, grapefruits, and oranges. Lavoie, Jean-Michel; Chornet, Esteban; Pelletier, André. J. Chem. Educ.2008, 85, 1555.
Alkenes |
Food Science |
Gas Chromatography |
Mass Spectrometry |
Natural Products |
Plant Chemistry |
Qualitative Analysis |
Quantitative Analysis
Computational Analysis of Stereospecificity in the Cope RearrangementLaura Glish and Timothy W. Hanks Experimental product distributions from the Cope rearrangement of disubstituted 1,5-hexadienes can be readily understood by computer modeling of the various possible transitions states. Visual analysis of these geometries allow students to interpret the computational results by analogy to the familiar chair and boat conformations of substituted cyclohexanes. Glish, Laura; Hanks, Timothy W. J. Chem. Educ.2007, 84, 2001.
Boiling and Freezing PointsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Physical Properties
Floating Squares (GCMP)David M. Whisnant Floating Squares: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will coat a piece of notecard with graphite (from pencil lead). We then will float the piece in two beakers containing water and a second solvent. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Physical Properties
Floating FootballsEd Vitz A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
