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Tatsuoka, Tomoyuki; Koga, Nobuyoshi – Journal of Chemical Education, 2013
Drawing a schematic energy diagram for the decomposition of H[subscript 2]O[subscript 2] catalyzed by MnO[subscript 2] through a simple thermometric measurement outlined in this study is intended to integrate students' understanding of thermochemistry and kinetics of chemical reactions. The reaction enthalpy, delta[subscript r]H, is…
Descriptors: Science Instruction, College Science, Secondary School Science, Chemistry
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Kitabayashi, Suguru; Nakano, Masayoshi; Nishikawa, Kazuyuki; Koga, Nobuyoshi – Journal of Chemical Education, 2016
A laboratory exercise for the education of students about thermal runaway reactions based on the reaction between aluminum and hydrochloric acid as a model reaction is proposed. In the introductory part of the exercise, the induction period and subsequent thermal runaway behavior are evaluated via a simple observation of hydrogen gas evolution and…
Descriptors: Science Instruction, Chemistry, Science Laboratories, Thermodynamics
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Kavanagh, Emma; Mindel, Sam; Robertson, Giles; Hughes, D. E. Peter – Journal of Chemical Education, 2008
We describe the construction of a simple solution calorimeter, using a miniature bead thermistor as a temperature-sensing element. This has a response time of a few seconds and made it possible to carry out a thermometric reaction in under a minute, which led to minimal heat losses. Small temperature changes of 1 K associated with enthalpies of…
Descriptors: Reaction Time, Heat, Laboratory Experiments, Undergraduate Students
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Inman, Fred W.; Woodruff, Dan – Physics Teacher, 1995
Presents a simple way to implement the thermometric property of a semiconductor diode to produce a thermometer with a nearly linear dependence upon temperature over a wide range of temperatures. (JRH)
Descriptors: Electric Circuits, Measurement, Physics, Science Instruction
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Hill, J. O.; Magee, R. J. – Journal of Chemical Education, 1988
Describes several experiments using the techniques of thermal analysis and thermometric titrimetry. Defines thermal analysis and several recent branches of the technique. Notes most of the experiments use simple equipment and standard laboratory techniques. (MVL)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
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Chan, K. M. – School Science Review, 1985
Describes: (1) thermometric titrations; (2) EM-5 equipment (consisting of a thermal sensor, calorimeter, and input-buffered amplifier); (3) acid-base titrations; (4) precipitation titrations; and (5) redox titrations. Detailed procedures are included. (JN)
Descriptors: Chemistry, College Science, Electricity, Higher Education
Bromfield Lee, Deborah Christina – ProQuest LLC, 2009
"Visualization" of chemical phenomena often has been limited in the teaching laboratories to the sense of sight. We have developed chemistry experiments that rely on senses other than eyesight to investigate chemical concepts, make quantitative determinations, and familiarize students with chemical techniques traditionally designed using only…
Descriptors: College Science, Chemistry, Science Instruction, Science Experiments
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Smith, Robert L.; Popham, Ronald E. – Journal of Chemical Education, 1983
Presents an experiment in thermometric titration used in an analytic chemistry-chemical instrumentation course, consisting of two titrations, one a mixture of calcium and magnesium, the other of calcium, magnesium, and barium ions. Provides equipment and solutions list/specifications, graphs, and discussion of results. (JM)
Descriptors: Calorimeters, Chemical Analysis, Chemistry, College Science
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Graham, Richard C.; DePew, Steven – Journal of Chemical Education, 1983
Briefly discusses three techniques for assessing amount of ammonia present in household cleaners. Because of disadvantages with these methods, the thermometric titration technique is suggested in which students judge the best buy based on relative cost of ammonia present in samples. Laboratory procedures, typical results, and reactions involved…
Descriptors: Calorimeters, Chemical Analysis, Chemical Reactions, Chemistry
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Parry-Jones, R. – Education in Chemistry, 1980
Described are some new uses and procedures of titration procedures. Topics included are titration in non-aqueous solvents, thermometric titration and catalytic methods for end-point detection, titration finish in organic elemental analysis, and sub-micro analysis and automatic titration procedures. (CS)
Descriptors: Chemical Analysis, Chemistry, Higher Education, Laboratory Procedures
New York Inst. of Tech., Old Westbury. – 1965
As the fourteenth lesson of the Articulated Multimedia Physics Course, instructional materials are presented in this study guide with relation to gases, gas laws, and absolute temperature. The topics are concerned with the kinetic theory of gases, thermometric scales, Charles' law, ideal gases, Boyle's law, absolute zero, and gas pressures. The…
Descriptors: College Science, Computer Assisted Instruction, Instructional Materials, Kinetic Molecular Theory
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Parry-Jones, R. L. – Education in Chemistry, 1976
Discusses the laboratory use of a titration end-point detection that relies on a temperature change rather than a color change. (MLH)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
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Hansen, Lee D.; And Others – Journal of Chemical Education, 1971
Descriptors: Chemical Reactions, Chemistry, College Science, Energy