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Li, Wai-Kee; Blinder, S. M. – Journal of Chemical Education, 2011
It is not often realized by chemists that the special theory of relativity is behind several aspects of quantum chemistry. The Schrdinger equation itself is based on relations between space-time and energy-momentum four vectors. Electron spin is, of course, the most obvious manifestation of relativity. The chemistry of some heavy elements is…
Descriptors: Chemistry, Scientific Concepts, Quantum Mechanics, Science Activities
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Bozlee, Brian J.; Janebo, Maria; Jahn, Ginger – Journal of Chemical Education, 2008
The chemistry of dissolved inorganic carbon in seawater is reviewed and used to predict the potential effect of rising levels of carbon dioxide in the atmosphere. In agreement with more detailed treatments, we find that calcium carbonate (aragonite) may become unsaturated in cold surface seawater by the year 2100 C.E., resulting in the destruction…
Descriptors: Chemistry, Teaching Models, Prediction, College Science
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Nguyen, T. L. U.; Bennet, Francesca; Stenzel, Martina H.; Barner-Kowollik, Christopher – Journal of Chemical Education, 2008
This 8-hour experiment (spread over two 4-hour sessions) is designed to equip students with essential skills in polymer synthesis, particularly in synthesizing polymers of well-defined molecular weight. The experiment involves the synthesis and characterization of poly(vinyl neodecanoate) via living free radical polymerization, specifically the…
Descriptors: Plastics, Undergraduate Students, Laboratories, Chemistry
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Morpurgo, Simone – Journal of Chemical Education, 2007
The principles of symmetry and group theory are applied to the zero-order wavefunctions associated with the strong-field t[subscript 2g][superscript 2] configuration and their symmetry-adapted linear combinations (SALC) associated with the generated energy terms are derived. This approach will enable students to better understand the use of…
Descriptors: Chemistry, Science Education, Spectroscopy, Structural Analysis (Science)
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Curbelo, Estela; Cerda, Maria F.; Mendez, Eduardo – Journal of Chemical Education, 2007
The study describes the various thermal equilibrium conditions, which should be taken care for while designing or selecting the plastic and glass microscale containers for physical chemistry experiments. The results show that the thermal equilibrium completely depends on the material of the container for the same volume and thickness.
Descriptors: Structural Analysis (Science), Plastics, Chemistry, Thermodynamics