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Kinetics : FactorsAffectingRate (7 Variations) Which of the following changes would NOT affect the rate of the reaction of cisplatin with water? Pt(NH_{3})_{2}Cl_{2}(aq) + H_{2}O(l) [Pt(NH_{3})_{2}(H_{2}O)Cl]^{+} + Cl^{-}

For the reaction of A B, which of the following statements about the rates of forward and reverse reactions is true at time x?

Equilibrium |

Kinetics

Kinetics : ArrheniusTemp (3 Variations)
The activation energy for the isomerization of cyclopropane to propene is 274 kJ/mol. By what factor does the rate of reaction increase as the temperature rises from 500^{o}C to 550^{o}C assuming all else remains constant? (R = 8.314 J/mol k)

Hint: This is asking for the ratio of rates which is proportional to the ratio of the rate constants, all else being equal.

Helping Students Make Sense of Logarithms and Logarithmic RelationshipsEd DePierro, Fred Garafalo, and Rick Toomey This paper summarizes difficulties that chemistry students at all levels exhibit when translating, manipulating, and interpreting mathematical expressions containing logarithms, and offers approaches useful in helping students to overcome those difficulties. DePierro, Ed; Garafalo, Fred; Toomey, Rick T. J. Chem. Educ.2008, 85, 1226.

Kinetics |

Mathematics / Symbolic Mathematics |

Constructivism

Data Pooling in a Chemical Kinetics Experiment: The Aquation of a Series of Cobalt(III) ComplexesRichard 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

Disorder and Chaos: Developing and Teaching an Interdisciplinary Course on Chemical DynamicsSteven G. Desjardins Describes an interdisciplinary course for nonscience majors that introduces ideas about mathematical modeling using examples based on pendulums, chemical kinetics, and population dynamics. Students learn about the nature of measurement and prediction through the use of spreadsheet software for the solution of equations and experimental data collection. Desjardins, Steven G. J. Chem. Educ.2008, 85, 1078.

ChemPaths 104 F Feb 18John W. Moore Today in Chem 104:
* Lecture: Rates of Reaction
* Reading:
Kotz: Ch. 15, Sec. 1-2
Moore, Ch 13, Sec. 1-2
* Homework #5 due by 11:55 pm F Feb 26
* Excel Assignment due at first discussion section
next week (week of Feb. 21)

Kinetics

Mechanism-Based Kinetics SimulatorRobert M. Hanson Simulate the kinetics of a reaction based on its mechanism using JavaScript. The idea is to write a mechanism and, based on that, follow the course of concentrations or rates of change in concentration of reactants, catalysts, intermediates, and products over time.

Kinetics |

Catalysis |

Mechanisms of Reactions

Kinetica; An Excel program to Stimulate or Analyze Kinetic DataLeonel Vera, Pedro Ortega, Miguel Guzmán The Excel spreadsheet Kinetica both simulates and analyzes kinetic data for simple rate equations of the form: - d[A]/dt = k [A]^n Instructors or students can generate simulated kinetic data using parameters they specify, or using parameters randomized by Kinetica. The data set that is generated may then be exported for use in exercises, homework, and exams, or may be analyzed directly within Kinetica. A kinetics data set may also be imported from an external source into Kinetica for analysis.