| Journal Articles: 39 results |
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Data Pooling in a Chemical Kinetics Experiment: The Aquation of a Series of Cobalt(III) Complexes Richard S. Herrick, Kenneth V. Mills, and Lisa P. Nestor Describes an experiment that introduces students to integrated rate laws, the search for a mechanism that is consistent with chemical and kinetic data, and the concept of activation barriers and their measurement in a curriculum whose pedagogical philosophy makes the laboratory the center of learning for undergraduates in their first two years of instruction. Herrick, Richard S.; Mills, Kenneth V.; Nestor, Lisa P. J. Chem. Educ. 2008, 85, 1120.
Coordination Compounds |
Kinetics |
Mechanisms of Reactions |
Rate Law |
UV-Vis Spectroscopy
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Reaction Order Ambiguity in Integrated Rate Plots Joe Lee This article provides a theoretical and statistical justification for the necessity of monitoring a reaction to a substantial fraction of completion if integrated rate plots plots are to yield unambiguous orders. Lee, Joe. J. Chem. Educ. 2008, 85, 141.
Chemometrics |
Kinetics |
Rate Law
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Visualizing the Transition State: A Hands-on Approach to the Arrhenius Equation Thomas S. Kuntzleman, Matthew S. Swanson, and Deborah K. Sayers Pennies and dice are used to simulate the kinetics of two irreversible "reactions" with a hands-on, Monte Carlo approach. Arrhenius plots of the data generated yield activation energies comparable to assigned values and pre-exponential factors close to what would be expected based on the probability of a "reactant" achieving the correct orientation for conversion into "product". A comparison of the values obtained for the pre-exponential factors for the different simulations allows students to semi-quantitatively discuss the orientational requirement that is contained within this factor. Kuntzleman, Thomas S.; Swanson, Matthew S.; Sayers, Deborah K. J. Chem. Educ. 2007, 84, 1776.
Kinetics |
Rate Law
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A Student Laboratory Experiment Based on the Vitamin C Clock Reaction Ed Vitz Describes an adaptation of the vitamin C clock reaction to a student laboratory experiment in which the orders with respect to peroxide and iodide, the rate constant, and the activation energy are determined by the method of initial rates. Vitz, Ed. J. Chem. Educ. 2007, 84, 1156.
Consumer Chemistry |
Kinetics |
Mechanisms of Reactions |
Rate Law
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An Inexpensive Kinetic Study: The Reaction of FD&C Red #3 (Erythrosin B) with Hypochlorite Maher M. Henary and Arlene A. Russell Students use a desktop visible spectrophotometer to quantitatively follow the rate of disappearance of FD&C Red #3 with hypochlorite. The first-order reaction in both dye and bleach yields simple data that students can easily process and graph using spreadsheet software to obtain the rate constant and the rate law. Henary, Maher M.; Russell, Arlene A. J. Chem. Educ. 2007, 84, 480.
Dyes / Pigments |
Kinetics |
Rate Law |
UV-Vis Spectroscopy
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Textbook Deficiencies: Ambiguities in Chemical Kinetics Rates and Rate Constants Keith T. Quisenberry and Joel Tellinghuisen Recommends that textbook authors make it clear that (i) the reaction rate and rate constant cannot be defined unambiguously without explicitly stating the reaction for which they apply and therefore (ii) the relation between the half-life, which is a physical property of the reaction system, and the rate constant depends upon how the reaction is written. Quisenberry, Keith T.; Tellinghuisen, Joel. J. Chem. Educ. 2006, 83, 510.
Kinetics |
Rate Law
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An Interactive Classroom Activity Demonstrating Reaction Mechanisms and Rate-Determining Steps Laura D. Jennings and Steven W. Keller An interactive classroom activity is described that allows visualization of microscopic reaction mechanisms via the macroscopic process of unwrapping and eating chocolate candies. Jennings, Laura D.; Keller, Steven W. J. Chem. Educ. 2005, 82, 549.
Reactions |
Rate Law |
Kinetics
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Flipping Pennies and Burning Candles: Adventures in Kinetics Michael J. Sanger Activity in which students collect data to determine whether two processes, flipping pennies and burning candles, follow zeroth- or first-order rate laws. Sanger, Michael J. J. Chem. Educ. 2003, 80, 304A.
Kinetics |
Rate Law
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Kinetics of Platinum-Catalyzed Decomposition of Hydrogen Peroxide Tiffany A. Vetter and D. Philip Colombo Jr. Determining the order and rate constant of the catalyzed decomposition of hydrogen peroxide using AOSEPT contact lens cleaning and a platinum-coated AOSEPT disc. Vetter, Tiffany A.; Colombo, D. Philip, Jr. J. Chem. Educ. 2003, 80, 788.
Catalysis |
Consumer Chemistry |
Kinetics |
Laboratory Computing / Interfacing |
Rate Law
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Rate Law Determination of Everyday Processes Michael J. Sanger, Russell A. Wiley Jr., Erwin W. Richter, and Amy J. Phelps Laboratory to determine whether burning a candle and flipping pennies follow zero-, first-, or second-order rate laws. Sanger, Michael J.; Wiley, Russell A., Jr.; Richter, Erwin W.; Phelps, Amy J. J. Chem. Educ. 2002, 79, 989.
Kinetics |
Rate Law
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An Experiment to Demonstrate How a Catalyst Affects the Rate of a Reaction Christine L. Copper and Edward Koubek This experiment, which is a modified version of the traditional iodine clock reaction, allows students to calculate rates of reaction, orders of reactants, and activation energies. It also lets students discover that to increase a reaction's rate, a catalyst need only provide any additional pathway for the reaction, not necessarily a pathway having a lower activation energy. Copper, Christine L.; Koubek, Edward. J. Chem. Educ. 1999, 76, 1714.
Catalysis |
Physical Properties |
Rate Law
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Using CBL Technology and a Graphing Calculator To Teach the Kinetics of Consecutive First-Order Reactions José E. Cortés-Figueroa and Deborah A. Moore This work proposes a demonstration to introduce first-order reactions using the CBL system. It then presents the analysis of two consecutive first-order reactions. The values of the rate constants that govern each reaction's rate are determined using the graphing and statistical capabilities of a TI-83 calculator. Cortés-Figueroa, José E.; Moore, Deborah A. J. Chem. Educ. 1999, 76, 635.
Kinetics |
Laboratory Computing / Interfacing |
Rate Law
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An Analogy to Help Students Understand Reaction Orders Charles J. Marzzacco This article describes a simple analogy to help students understand the concept of the rate law for a chemical reaction. The analogy involves the mathematical relationships between various characteristics of a cube and the length of its edge. Charles J. Marzzacco. J. Chem. Educ. 1998, 75, 482.
Learning Theories |
Kinetics |
Rate Law
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The Coupling of Related Demonstrations to Illustrate Principles in Chemical Kinetics and Equilibrium Richard A. Pacer Two very simple lecture demonstrations, both involving the reaction of magnesium with one or more dilute acids, are linked together to illustrate principles in chemical kinetics and equilibrium. Pacer, Richard A. J. Chem. Educ. 1997, 74, 543.
Learning Theories |
Acids / Bases |
Equilibrium |
Kinetics |
Rate Law |
Reactions
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Inflation Rates, Car Devaluation, and Chemical Kinetics Lionello Pogliani, Màrio N. Berberan-Santos The inflation rate problem of a modern economy shows quite interesting similarities with chemical kinetics and especially with first-order chemical reactions. Pogliani, Lionello; Berberan-Santos, Màrio N. J. Chem. Educ. 1996, 73, 950.
Kinetics |
Rate Law
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KineticsLab: The Crystal Violet/Sodium Hydroxide Reaction Cannon, John F.; Gammon, Steven D.; Hunsberger, Lynn R. A computer-assisted experiment to collect and analyze data for a kinetic study of the decolorization of crystal violet in basic solution. Cannon, John F.; Gammon, Steven D.; Hunsberger, Lynn R. J. Chem. Educ. 1994, 71, 238.
Kinetics |
Rate Law |
Reactions
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Three methods for studying the kinetics of the halogenation of acetone. Birk, James P.; Walters, David L. Three methods for carrying out a kinetic study of the reaction between propanone and elemental iodine. Birk, James P.; Walters, David L. J. Chem. Educ. 1992, 69, 585.
Aldehydes / Ketones |
Kinetics |
Spectroscopy |
Rate Law
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Some provocative opinions on the terminology of chemical kinetics Reeve, John C. Textbooks perpetuate a misunderstanding to students that reaction rates are inherent to the reaction, rather than being the product of experiments. Reeve, John C. J. Chem. Educ. 1991, 68, 728.
Kinetics |
Rate Law
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A study of some 2-chloro-2-methylpropane kinetics using a computer interface Allen, Anthony; Haughey, Adam J.; Hernandez, Yolanda; Ireton, Scot Examining the effects of a few variables on the rate of a chemical reaction using specialized software. Allen, Anthony; Haughey, Adam J.; Hernandez, Yolanda; Ireton, Scot J. Chem. Educ. 1991, 68, 609.
Kinetics |
Rate Law |
Acids / Bases |
Laboratory Computing / Interfacing
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A demonstration illustrating the factors determining rates of chemical reactions Holmes, L. H., Jr. This demonstration qualitatively illustrates factors determining reaction rates for first-year chemistry students. Holmes, L. H., Jr. J. Chem. Educ. 1991, 68, 501.
Rate Law |
Kinetics
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Computer simulation of chemical equilibrium Cullen, John F., Jr. 108. The "Great Chemical Bead Game" requires no instruments and presents the concepts of equilibrium and kinetics more clearly than an experiment. [October and November Computer Series both inadvertently called number 107. Numbering restored by skipping 109 and calling January 1990 number 110.] Cullen, John F., Jr. J. Chem. Educ. 1989, 66, 1023.
Equilibrium |
Kinetics |
Rate Law
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Catalysis: New reaction pathways not just a lowering of the activation energy Haim, Albert The explanation that the increased rate associated with a catalyzed reaction is the result of a lowering of the activation energy cannot always be correct. Haim, Albert J. Chem. Educ. 1989, 66, 935.
Catalysis |
Rate Law
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The study of a simple redox reaction as an experimental approach to chemical kinetics Elias, Horst; Zipp, Arden P. The authors present a kinetics experiment based on the oxidation of iodide ions that, like the iodine clock, is quick and easy to perform but has the advantage of being followed directly rather than indirectly. Elias, Horst; Zipp, Arden P. J. Chem. Educ. 1988, 65, 737.
Kinetics |
Reactions |
Rate Law
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Interactive program system for integration of reaction rate equations Chesick, Jobn P. 93. The authors describe here a Pascal-language kinetics rate law integration package for the desktop microcomputer. Chesick, Jobn P. J. Chem. Educ. 1988, 65, 599.
Rate Law |
Laboratory Computing / Interfacing |
Kinetic-Molecular Theory
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Kinetics and mechanism of the iodine azide reaction: A videotaped experiment Haight, Gilbert P.; Jones, Loretta L. A clock reaction suitable for videotaping and presenting to a large lecture class of general chemistry for analysis. Haight, Gilbert P.; Jones, Loretta L. J. Chem. Educ. 1987, 64, 271.
Kinetics |
Mechanisms of Reactions |
Rate Law
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A comment on "The order of CH3CHO decomposition" Liu, Michael T. H. The order of the decomposition of acetaldehyde is 3/2 or 1.5. Liu, Michael T. H. J. Chem. Educ. 1985, 62, 399.
Aldehydes / Ketones |
Rate Law |
Kinetics
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Kinetics and mechanism-a games approach Harsch, Gunther Using statistical games to simulate and illustrate a variety of chemical kinetics. Harsch, Gunther J. Chem. Educ. 1984, 61, 1039.
Kinetics |
Mechanisms of Reactions |
Catalysis |
Rate Law
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Chemical Kinetics: Reaction Rates Mickey, Charles D. Reviews the chemistry behind factors that influence the rates of chemical reactions. Mickey, Charles D. J. Chem. Educ. 1980, 57, 659.
Rate Law |
Kinetics |
Reactions |
Catalysis
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An introductory level kinetics investigation McGarvey, J. E. B.; Knipe, A. C. A kinetic study of the hydrolysis of 3-bromo-3-phenylpropanoic acid. McGarvey, J. E. B.; Knipe, A. C. J. Chem. Educ. 1980, 57, 155.
Kinetics |
Rate Law |
Mechanisms of Reactions
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The kinetics of running Larsen, Russell D. The consideration of running as a rate process has several advantages for a student studying chemical kinetics for the first time. Larsen, Russell D. J. Chem. Educ. 1979, 56, 651.
Kinetics |
Rate Law
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Kinetics simulation program Breneman, G. L. A Basic program that simulates the spectrophotometric study of a reaction and allows the determination of rate law values from absorbance data. Breneman, G. L. J. Chem. Educ. 1975, 52, 106.
Kinetics |
Rate Law
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Programmable calculators. Simulated experiments Runquist, O.; Olsen, Rodney; Snadden, Bruce Describes how titration and reaction rate experiments can be simulated on a programmable calculator. Runquist, O.; Olsen, Rodney; Snadden, Bruce J. Chem. Educ. 1972, 49, 265.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis |
Rate Law |
Kinetics |
pH
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A study of the physical and chemical rates of CaCO3 dissolution in HCl Bassow, Herbert; Hamilton, Doug; Schneeberg, Ben; Stad, Ben The authors describe the experimental procedure and a discussion of results for a study of the physical and chemical rates of CaCO3 dissolution in HCl. Bassow, Herbert; Hamilton, Doug; Schneeberg, Ben; Stad, Ben J. Chem. Educ. 1971, 48, 327.
Acids / Bases |
Kinetics |
Reactions |
Rate Law
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From stoichiometry and rate law to mechanism Edwards, John O.; Greene, Edward F.; Ross, John Examines the rules used by chemists as guidelines in developing mechanisms from stoichiometric and rate law observations. Edwards, John O.; Greene, Edward F.; Ross, John J. Chem. Educ. 1968, 45, 381.
Stoichiometry |
Rate Law |
Kinetics |
Mechanisms of Reactions |
Equilibrium |
Reactive Intermediates
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The revolution in elementary kinetics and freshman chemistry Wolfgang, Richard New developments in kinetics so fundamentally affect our most elementary conception of chemical change that they must inevitably be reflected in beginning courses in chemistry; includes an outline for freshmen on elementary chemical dynamics. Wolfgang, Richard J. Chem. Educ. 1968, 45, 359.
Kinetics |
Rate Law |
Mechanisms of Reactions
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A kinetics experiment for first year chemistry Shaefer, William P. The exchange of iodine atoms between organic and inorganic iodides serves as a kinetics experiment for first year chemistry. Shaefer, William P. J. Chem. Educ. 1964, 41, 558.
Kinetics |
Isotopes |
Rate Law
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The oxidation of iodide ion by persulfate ion Moews, P. C., Jr.; Petrucci, R. H. Presents the oxidation of iodide ion by persulfate ion as an ideal reaction to study as part of an experiment on kinetics. Moews, P. C., Jr.; Petrucci, R. H. J. Chem. Educ. 1964, 41, 549.
Oxidation / Reduction |
Reactions |
Kinetics |
Rate Law
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Colorimetric chemical kinetics experiment Corsaro, Gerald This article describes an experiment in which a photocolorimetric technique is employed to follow a bimolecular reaction rate; the reactants are crystal violet and the hydroxide ion. Corsaro, Gerald J. Chem. Educ. 1964, 41, 48.
Kinetics |
Rate Law |
Reactions
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Textbook errors: VII. The laws of reaction rates and of equilibrium Mysels, Karol J. Examines the frequently misplaced emphasis on the rate law of mass action, its fallacious use to prove the existence and form of equilibrium constants, and the occasional confusion of the two concepts. Mysels, Karol J. J. Chem. Educ. 1956, 33, 178.
Kinetics |
Rate Law |
Equilibrium
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