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Journal Articles: 24 results
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
Magnesium Chloride  Jay A. Young
The hazards of magnesium chloride are discussed.
Young, Jay A. J. Chem. Educ. 2007, 84, 412.
Laboratory Management
Magnesium  Jay A. Young
The hazards of magnesium are discussed.
Young, Jay A. J. Chem. Educ. 2007, 84, 411.
Laboratory Management |
Metals
Magnesium Sulfate  Jay A. Young
The hazards of magnesium sulfate are discussed.
Young, Jay A. J. Chem. Educ. 2005, 82, 678.
Laboratory Management
Magnesium Oxide  Jay A. Young
The hazards of magnesium oxide are discussed.
Young, Jay A. J. Chem. Educ. 2005, 82, 677.
Laboratory Management
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 pHvoltmeter. Students determine the endpoint by graphing the data and applying simple mathematics. BeerLambert 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
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
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
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
Elementary Riddles  Eckley, Doris.
The riddles highlight some contradictory properties of elements and their compounds.
Eckley, Doris. J. Chem. Educ. 1994, 71, 1051.
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
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
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
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
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
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
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
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
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
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
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.
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
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
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