| Journal Articles: 24 results |
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Using Pooled Data and Data Visualization To Introduce Statistical Concepts in the General Chemistry Laboratory Robert J. Olsen
This article describes how data pooling and visualization can be employed in the first-semester general chemistry laboratory to introduce core statistical concepts such as central tendency and dispersion of a data set.
Olsen, Robert J. J. Chem. Educ. 2008, 85, 544.
Chemometrics |
Stoichiometry
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Magnesium Chloride Jay A. Young
The hazards of magnesium chloride are discussed.
Young, Jay A. J. Chem. Educ. 2007, 84, 412.
Laboratory Management
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Magnesium Jay A. Young
The hazards of magnesium are discussed.
Young, Jay A. J. Chem. Educ. 2007, 84, 411.
Laboratory Management |
Metals
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Magnesium Sulfate Jay A. Young
The hazards of magnesium sulfate are discussed.
Young, Jay A. J. Chem. Educ. 2005, 82, 678.
Laboratory Management
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Magnesium Oxide Jay A. Young
The hazards of magnesium oxide are discussed.
Young, Jay A. J. Chem. Educ. 2005, 82, 677.
Laboratory Management
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A Laser-Pointer-Based Spectrometer for Endpoint Detection of EDTA Titrations Christopher E. Dahm, James W. Hall, and Brian E. Mattioni
A simple laser-pointer-based spectrometer has been developed for endpoint detection of EDTA titrations of magnesium and calcium. This spectrometer was built to decrease the uncertainty in determining the endpoint of titrations performed with a Calmagite indicator. With a photoresistor as the detector, and with the aid of a voltage-divider circuit, the quantity of light being absorbed can be followed with a simple pHvoltmeter. Students determine the endpoint by graphing the data and applying simple mathematics. BeerLambert studies with the spectrometer also show excellent agreement for a given set of solutions.
Dahm, Christopher E.; Hall, James W.; Mattioni, Brian E. J. Chem. Educ. 2004, 81, 1787.
Dyes / Pigments |
Laboratory Equipment / Apparatus |
Lasers |
Spectroscopy |
Titration / Volumetric Analysis
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Stoichiometry of the Reaction of Magnesium with Hydrochloric Acid Venkat Chebolu and Barbara C. Storandt
Using a pressure sensor to measure the production of hydrogen by a reaction between magnesium and hydrochloric acid.
Chebolu, Venkat; Storandt, Barbara C. J. Chem. Educ. 2003, 80, 305.
Stoichiometry |
Gases |
Laboratory Equipment / Apparatus |
Laboratory Computing / Interfacing |
Reactions
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A Simple Computer-Interfaced Calorimeter: Application to the Determination of the Heat of Formation of Magnesium Oxide Sze-Shun Wong, Natasha D. Popovich, and Shelley J. Coldiron
Design, construction, and laboratory instructional application of a simple computer-controlled, constant-pressure calorimeter.
Wong, Sze-Shun; Popovich, Natasha D.; Coldiron, Shelley J. J. Chem. Educ. 2001, 78, 798.
Calorimetry / Thermochemistry |
Instrumental Methods |
Thermodynamics |
Laboratory Equipment / Apparatus
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Augmenting a classical electrochemical demonstration Yochum, Susan M.; Luoma, John R.
Substituting magnesium for zinc in the copper/zinc electrochemical cell to enhance student understanding of electrochemistry; includes data and analysis.
Yochum, Susan M.; Luoma, John R. J. Chem. Educ. 1995, 72, 55.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
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Elementary Riddles Eckley, Doris.
The riddles highlight some contradictory properties of elements and their compounds.
Eckley, Doris. J. Chem. Educ. 1994, 71, 1051.
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Laboratory Explosion Danger from Mixing Magnesium and Copper Oxide Vella, Alfred J.
Hazard of mixing magnesium and copper(II) oxide while heating; danger of thermite-type reactions in general.
Vella, Alfred J. J. Chem. Educ. 1994, 71, 328.
Metals
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A WARNING: Explosion Hazards of Reacting Magnesium and Aluminum with Powdered Silver Nitrate Laing, Michael
Danger of reacting Mg and AgNO3, Al and AgNO3.
Laing, Michael J. Chem. Educ. 1994, 71, 270.
Metals |
Reactions
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Pyrotechnic Reactions Without Oxygen Wright, Stephen W.
Reaction of K3FeF6 with Al and poly(tetrafluoroethylene) with Mg.
Wright, Stephen W. J. Chem. Educ. 1994, 71, 251.
Oxidation / Reduction |
Reactions
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Introduction to overhead projector demonstrations Kolb, Doris
General suggestions for using the overhead projector and 21 demonstrations. [Debut]
Kolb, Doris J. Chem. Educ. 1987, 64, 348.
Rate Law |
Reactions |
Catalysis |
Equilibrium |
Transition Elements |
Metals |
Oxidation / Reduction |
Acids / Bases
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Spectrophotometric titration of a mixture of calcium and magnesium Fulton, Robert; Ross, Michael; Schroeder, Karl
Because the conditions chosen for the titration are not well suited to visual endpoints, students become aware of the unique advantage of spectrophotometric titrations.
Fulton, Robert; Ross, Michael; Schroeder, Karl J. Chem. Educ. 1986, 63, 721.
UV-Vis Spectroscopy |
Coordination Compounds |
Titration / Volumetric Analysis
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A simultaneous analysis problem for advanced general chemistry laboratories Leary, James J.; Gallaher, T. N.
The goal of this experiment is to determine the percentage Mg3N2 and the percentage Mg formed when magnesium metal is ignited in a crucible using a Bunsen burner.
Leary, James J.; Gallaher, T. N. J. Chem. Educ. 1983, 60, 673.
Quantitative Analysis |
Stoichiometry
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Ignition of magnesium in porcelain Feinstein, H. I.
Demonstrating the presence of nitrogen in air without ruining the porcelain glaze of a crucible.
Feinstein, H. I. J. Chem. Educ. 1982, 59, 159.
Laboratory Management |
Atmospheric Chemistry |
Quantitative Analysis
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A Demonstration of burning magnesium and dry ice Driscoll, Jerry A.
This demonstration is a new, exciting approach to an older demonstration.
Driscoll, Jerry A. J. Chem. Educ. 1978, 55, 450.
Thermodynamics |
Kinetics |
Reactions
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Biochemical roles of some essential metal ions J. Chem. Educ. Staff
Summarizes the important biochemical roles played by ions of sodium, potassium, calcium, magnesium, zinc, iron, cobalt, and copper.
J. Chem. Educ. Staff J. Chem. Educ. 1977, 54, 761.
Metals |
Organometallics |
Bioinorganic Chemistry
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A novel synthesis of magnesium carbide Lauren, Paul M.
Demonstrates the synthesis of magnesium carbide from calcium carbide and magnesium ribbon.
Lauren, Paul M. J. Chem. Educ. 1968, 45, A569.
Synthesis
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Group II. The Alkaline Earths. The Zinc Group A. Magnesium Owens, Charles; Young, James A.
Demonstration of magnesium with steam and carbon dioxide.
Owens, Charles; Young, James A. J. Chem. Educ. 1967, 44, A1053.
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Ionization, electricity B. (continued) Production of electricity Hornbeck, LeRoy; Barnard, Robert; Jackman, Kenneth; Ulery, Denver; Rogers, Crosby
Demonstrations include magnesium + acid ringing a bell, magnesium + acid lighting a bulb, couples without a salt bridge, and half-cells with salt bridge and microammeter.
Hornbeck, LeRoy; Barnard, Robert; Jackman, Kenneth; Ulery, Denver; Rogers, Crosby J. Chem. Educ. 1966, 43, A585.
Aqueous Solution Chemistry |
Electrochemistry
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Magnesium cell for demonstration Mathur, Prem Behari; Paul, Nityanandan J.
Describes a cell system consisting of copper and magnesium plates or ribbon immersed in copper sulfate solution.
Mathur, Prem Behari; Paul, Nityanandan J. J. Chem. Educ. 1963, 40, 43.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
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Letters to the editor Sastry, K. R. Krishna
Silicon crucibles should not be used with magnesium or calcium as some of the metal reacts with the silicon to form the silicide.
Sastry, K. R. Krishna J. Chem. Educ. 1957, 34, 155.
Laboratory Management
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