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Piechota, Eric J.; Meyer, Gerald J. – Journal of Chemical Education, 2019
A central theme in introductory and advanced chemical education courses pertains directly to the transfer of electrons between atoms, ions, or molecules. This article presents theoretical treatments of electron transfer with specific attention toward applying these principles to experiment. The goal is to revitalize teaching electron transfer at…
Descriptors: Chemistry, College Science, Scientific Concepts, Science Instruction
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Peng, Zhe; Jimenez, Jose L. – Journal of Chemical Education, 2019
KinSim is a research-grade, interactive, user-friendly, open-source, and visual software for kinetics modeling of environmental chemistry and other applications. Students without any computer-programming background and limited knowledge of environmental chemistry can use KinSim, which also includes multiple features and functionality dedicated to…
Descriptors: Chemistry, Science Instruction, Kinetics, Environmental Education
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Perrin, Charles L. – Journal of Chemical Education, 2017
The disadvantages of the usual linear least-squares analysis of first- and second-order kinetic data are described, and nonlinear least-squares fitting is recommended as an alternative.
Descriptors: Kinetics, Least Squares Statistics, Alternative Assessment, Goodness of Fit
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Perez-Benito, Joaquin F. – Journal of Chemical Education, 2017
The elementary reaction sequence A ? I ? Products is the simplest mechanism for which the steady-state and quasi-equilibrium kinetic approximations can be applied. The exact integrated solutions for this chemical system allow inferring the conditions that must fulfill the rate constants for the different approximations to hold. A graphical…
Descriptors: Chemistry, Kinetics, Scientific Concepts, Graduate Study
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Cortes-Figueroa, Jose E.; Perez, Wanda I.; Lopez, Jose R.; Moore-Russo, Deborah A. – Journal of Chemical Education, 2011
In this article, the authors present an analogy that uses coins and graphical analysis to teach kinetics concepts and resolve pseudo-first-order rate constants related to transition-metal complexes ligand-solvent exchange reactions. They describe an activity that is directed to upper-division undergraduate and graduate students. The activity…
Descriptors: Scientific Concepts, Kinetics, Chemistry, Science Instruction
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Siboni, S. – European Journal of Physics, 2009
The generalized potential of the inertial forces acting on a holonomic system in an accelerated reference frame is derived in a way which admits a simple physical interpretation. It is shown that the generalized potential refers to all the inertial forces and, apart from the very special case of a uniformly rotating frame, it is impossible to…
Descriptors: Graduate Study, College Science, Science Instruction, Physics
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Kovalenko, Laurie J.; Leone, Stephen R. – Journal of Chemical Education, 1988
Considers two types of laser applications in kinetics. Explores short laser pulses to prepare a reactant in a known state and a continuous laser as a probe to monitor specific species in a reaction. Describes how lasers work and provides several examples of kinetic reactions. (ML)
Descriptors: Chemical Analysis, Chemical Bonding, Chemical Reactions, Chemistry