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Hydrophobic Effect Hydrophobic Effect: Octanoic acid forms a monolayer on the surface of water under certain conditions.
Alkanes / Cycloalkanes |
Carboxylic Acids |
Molecular Properties / Structure |
Water / Water Chemistry |
Noncovalent Interactions
Carboxylic Acids and Derivatives Conductivity of carboxylic acids, pH of acetic acid derivatives, hydrophobic effect, and soap emulsions of hydrocarbons are demonstrated.
Analytical Spectroscopy Using Modular SystemsBrian M. Patterson, Neil D. Danielson, Gary A. Lorigan, and André J. Sommer This article describes the development of three analytical spectroscopy experiments that compare the determination of salicylic acid (SA) content in aspirin tablets. The experiments are based on UVvis, fluorescence, and Raman spectroscopies and utilize modular spectroscopic components. Students assemble their own instruments, optimize them with respect to signal-to-noise, generate calibration curves, determine the SA content in retail aspirin tablets, and assign features in the respective spectra to functional groups within the active material. Patterson, Brian M.; Danielson, Neil D.; Lorigan, Gary A.; Sommer, André J. J. Chem. Educ.2003, 80, 1460.
Preparation and Identification of Benzoic Acids and Benzamides: An Organic "Unknown" LabDouglass F. Taber, Jade D. Nelson, and John P. Northrop The reaction of an unknown substituted benzene derivative with oxalyl chloride and aluminum chloride gives the acid chloride. Hydrolysis of the acid chloride gives the acid, and reaction of the acid with concentrated aqueous ammonia gives the benzamide. The equivalent weight of the acid can be determined by titration; given this information and the melting points of the acid and the benzamide, it is possible to deduce the structure of the initial unknown. Taber, Douglass F.; Nelson, Jade D.; Northrop, John P. J. Chem. Educ.1999, 76, 828.
