| Journal Articles: 187 results |
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Study of Molecular-Shape Selectivity of Zeolites by Gas Chromatography Pei-Yu Chao, Yao-Yuan Chuang, Grace Hsiuying Ho, Shiow-Huey Chuang, Tseng-Chang Tsai, Chi-Young Lee, Shang-Tien Tsai, and Jun-Fu Huang
This analytical or physical chemistry sorption experiment uses hexane isomers as probe molecules to demonstrate the "molecular-shape selectivity" behavior of zeolites. Students can also modify the sorption protocol to build their own experiments.
Chao, Pei-Yu; Chuang, Yao-Yuan; Ho, Grace Hsiuying; Chuang, Shiow-Huey; Tsai, Tseng-Chang; Lee, Chi-Young; Tsai, Shang-Tien; Huang, Jun-Fu. J. Chem. Educ. 2008, 85, 1558.
Alkanes / Cycloalkanes |
Constitutional Isomers |
Gas Chromatography |
Molecular Properties / Structure |
Physical Properties |
Separation Science |
Solid State Chemistry |
Molecular Recognition
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On Capillary Rise and Nucleation R. Prasad
A comparison of capillary rise and nucleation shows that both phenomena result from a balance between two competing energy factors: a volume energy and a surface energy. This comparison may help to introduce nucleation with capillary rise, a topic familiar to students.
Prasad, R. J. Chem. Educ. 2008, 85, 1389.
Liquids |
Materials Science |
Metallurgy |
Solids
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A Non-Mercury Thermometer Alternative for Use in Older Melting Point Apparatuses Lois K. Ongley, Clayton S. Kern, and Barry W. Woods
This work demonstrates that lab-calibrated thermocouples are a statistically accurate and economically reasonable substitute for mercury thermometers to measure the melting point temperature for organic compounds in older Mel-Temp devices.
Ongley, Lois K.; Kern, Clayton S.; Woods, Barry W. J. Chem. Educ. 2008, 85, 1263.
Calibration |
Laboratory Equipment / Apparatus |
Molecular Properties / Structure |
Physical Properties |
Laboratory Management
|
Using Molecular Dynamics Simulation To Reinforce Student Understanding of Intermolecular Forces Phillip R. Burkholder, Gordon H. Purser, and Renee S. Cole
This article presents a series of experiments incorporating molecular dynamics simulations which predict the motion of chemical species based on the application of empirical rules and a physical analysis of the forces that act between the species. These motions can then be shown in vivid graphical form.
Burkholder, Phillip R.; Purser, Gordon H.; Cole, Renee S. J. Chem. Educ. 2008, 85, 1071.
Computational Chemistry |
Hydrogen Bonding |
Molecular Mechanics / Dynamics |
Physical Properties |
Solutions / Solvents
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An Inexpensive Semiautomatic Pressurized Microfiltration Device E. Rodríguez-Fernandez, M. A. Vicente, J. J. Criado, and J. L. Manzano
Using the device shown, the filtration of small volumes (= 10 mL) of liquid can be facilitated by replacing the vacuum or manual pressure on the piston with pressure exerted by a rubber band on the piston. The filtration is thus conducted in a semiautomatic way.
Rodríguez-Fernandez, E.; Vicente, M. A.; Criado, J. J.; Manzano, J. L. J. Chem. Educ. 2008, 85, 1051.
Laboratory Equipment / Apparatus |
Liquids |
Microscale Lab
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Easy-To-Make Cryophoruses Rubin Battino and Trevor M. Letcher
This article describes some simple and easy-to-make cryophoruses, ideal for demonstrating evaporative cooling to students at all levels.
Battino, Rubin; Letcher, Trevor M. J. Chem. Educ. 2008, 85, 561.
Lipids |
Physical Properties |
Thermodynamics |
Liquids
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Enthalpy of Vaporization and Vapor Pressures: An Inexpensive Apparatus Rubin Battino, David A. Dolson, Michael R. Hall, and Trevor M. Letcher
Describes an inexpensive apparatus for the determination of the vapor pressure of a liquid as a function of temperature for the purpose of calculating enthalpy changes of vaporization. Also described are a simple air thermostat and an inexpensive temperature controller based on an integrated temperature sensor.
Battino, Rubin; Dolson, David A.; Hall, Michael R.; Letcher, Trevor M. J. Chem. Educ. 2007, 84, 822.
Gases |
Laboratory Equipment / Apparatus |
Lipids |
Phenols |
Physical Properties |
Thermodynamics |
Liquids |
Phases / Phase Transitions / Diagrams
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Cp/Cv Ratios Measured by the Sound Velocity Method Using Calculator-Based Laboratory Technology Mario Branca and Isabella Soletta
The values ? = Cp /Cv (heat capacity at a constant pressure / heat capacity at constant volume) for air, oxygen, nitrogen, argon, and carbon dioxide were determined by measuring the velocity of sound through these gases at room temperature using Calculator-Based Laboratory Technology.
Branca, Mario; Soletta, Isabella. J. Chem. Educ. 2007, 84, 462.
Gases |
Thermodynamics |
Physical Properties
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Teaching Structure–Property Relationships: Investigating Molecular Structure and Boiling Point Peter M. Murphy
The boiling points for 392 organic compounds are tabulated by carbon chain length and functional group to facilitate a wide range of inquiry-based activities that correlate the effects of chemical structure on physical properties.
Murphy, Peter M. J. Chem. Educ. 2007, 84, 97.
Molecular Properties / Structure |
Physical Properties
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A Developmental History of Polymer Mass Spectrometry Matthew J. Vergne, Robert P. Lattimer, and David M. Hercules
This review provides a historical perspective of the development of polymer mass spectrometry, divided into three eras: the small molecule era (1950s and 1960s); the macromass era (1970s and 1980s); and the modern era (the late 1980s to the present).
Vergne, Matthew J.; Lattimer, Robert P.; Hercules, David M. J. Chem. Educ. 2007, 84, 81.
Mass Spectrometry |
Materials Science |
Physical Properties |
Molecular Properties / Structure |
Instrumental Methods
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Popcorn—What's in the Bag? Marissa B. Sherman and Thomas A. Evans
Three independent activities explore microwave popcorn, the nature of the packaging, and the popcorn produced.
Sherman, Marissa B.; Evans, Thomas A. J. Chem. Educ. 2006, 83, 416A.
Carbohydrates |
Nutrition |
Physical Properties |
Solutions / Solvents |
Water / Water Chemistry
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Entropy and the Shelf Model: A Quantum Physical Approach to a Physical Property Arnd H. Jungermann
A quantum physical approach relying on energy quantization leads to three simple rules which are the key to understanding the physical property described by molar entropy values.
Jungermann, Arnd H. J. Chem. Educ. 2006, 83, 1686.
Alcohols |
Alkanes / Cycloalkanes |
Carboxylic Acids |
Covalent Bonding |
Ionic Bonding |
Physical Properties |
Quantum Chemistry |
Thermodynamics
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Density Visualization Richard L. Keiter, Whitney L. Puzey, and Erin A. Blitz
Metal rods of high purity for several elements can be used to construct a display in which their relative densities may be assessed visually.
Keiter, Richard L.; Puzey, Whitney L.; Blitz, Erin A. J. Chem. Educ. 2006, 83, 1629.
Metals |
Physical Properties |
X-ray Crystallography
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Intelligent Thermochromic Windows Ivan P. Parkin and Troy D. Manning
This article covers the background and related science associated with a thermochromic window, a device that changes its reflectance and transmission properties at a specific critical temperature.
Parkin, Ivan P.; Manning, Troy D. J. Chem. Educ. 2006, 83, 393.
Materials Science |
Physical Properties |
Solid State Chemistry
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Axisymmetric Liquid Hanging Drops Erich C. Meister and Tatiana Yu. Latychevskaia
Examinmes the buildup of axially symmetric hanging drops, starting from the YoungLaplace equation and the governing differential equation. The growing of drops is discussed in terms of changing geometrical quantities such as drop volume, height, surface area, and contact angle to the capillary.
Meister, Erich C.; Latychevskaia, Tatiana Yu. J. Chem. Educ. 2006, 83, 117.
Computational Chemistry |
Instrumental Methods |
Liquids |
Materials Science |
Surface Science
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Vapor Pressure Measurements in a Closed System Mark Iannone
Describes an inexpensive apparatus for vapor pressure measurements in a closed system and the procedure for its use.
Iannone, Mark. J. Chem. Educ. 2006, 83, 97.
Gases |
Liquids |
Physical Properties |
Thermodynamics
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Organic Spectroscopy Laboratory: Utilizing IR and NMR in the Identification of an Unknown Substance Neil M. Glagovich and Timothy D. Shine
An undergraduate organic laboratory designed to teach the use of IR and NMR spectra interpretation in the identification of an unknown substance has been developed. This laboratory requires the student to obtain the IR spectrum of an unknown substance and, from the interpretation of that spectrum, determine which of several possible functional groups is present in the molecule. Using this information and either the melting point or boiling point of the unknown, the student is able to determine a list of likely candidates (usually between eight and twelve suspects collated from a supplied table of possible compounds). The student will then draw the structures for all candidate compounds and, from those structures, predict the 1H- and 13C-NMR spectra for each.
Glagovich, Neil M.; Shine, Timothy D. J. Chem. Educ. 2005, 82, 1382.
IR Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis |
Solids |
Liquids
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A Multipurpose Apparatus To Measure Viscosity and Surface Tension of Solutions. The Measurement of the Molecular Cross-Sectional Area of n-Propanol. Xin Zhang, Shouxin Liu, Baoxin Li, Na An, and Fan Zhang
A multipurpose apparatus is described that can be used to measure the viscosity of a solution by the Ostwald method and the surface tension by either the capillary-rise or the drop-weight method.
Zhang, Xin; Liou, Shouxin; Li, Baoxin; An, Na; Zhang, Fan. J. Chem. Educ. 2004, 81, 850.
Solutions / Solvents |
Surface Science |
Laboratory Equipment / Apparatus |
Liquids
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N,N-Dimethylformamide Jay A. Young
The hazards of N,N-dimethylformamide are described.
Young, Jay A. J. Chem. Educ. 2004, 81, 632.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
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Chloroacetic acid Jay A. Young
The hazards of chloroacetic acid are described.
Young, Jay A. J. Chem. Educ. 2004, 81, 631.
Physical Properties |
Laboratory Management |
Acids / Bases |
Laboratory Equipment / Apparatus
|
Calcium Jay A. Young
Properties, hazards, and storage requirements for calcium.
Young, Jay A. J. Chem. Educ. 2004, 81, 479.
Laboratory Management |
Physical Properties |
Metals |
Laboratory Equipment / Apparatus
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Silver Jay A. Young
Properties, hazards, and storage requirements for silver.
Young, Jay A. J. Chem. Educ. 2004, 81, 478.
Laboratory Management |
Physical Properties |
Metals |
Laboratory Equipment / Apparatus
|
Aluminum Chloride Jay A. Young
Properties, hazards, and storage requirements for aluminum chloride.
Young, Jay A. J. Chem. Educ. 2004, 81, 331.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
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Sodium Iodide Jay A. Young
Properties, hazards, and storage requirements for sodium iodide.
Young, Jay A. J. Chem. Educ. 2004, 81, 330.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Aluminum Sulfate 18 Hydrate Jay A. Young
Properties, hazards, and storage requirements for aluminum sulfate 18 hydrate.
Young, Jay A. J. Chem. Educ. 2004, 81, 187.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
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Using a Disposable Pipet for Preparing Air-Sensitive Compounds for Melting Point Determinations or Storage Martial Sanz
An inexpensive disposable Pasteur pipet can be transformed into a capillary tube, which, once correctly coupled with a Quickfit adapter with a side arm by means of a rubber septum, can receive under a dried and inert atmosphere air-sensitive samples from a Schlenk-type vessel.
Sanz, Martial. J. Chem. Educ. 2004, 81, 106.
Laboratory Equipment / Apparatus |
Physical Properties |
Laboratory Management
|
Stearic Acid Jay A. Young
Properties, hazards, and storage requirements for stearic acid.
Young, Jay A. J. Chem. Educ. 2004, 81, 25.
Laboratory Equipment / Apparatus |
Laboratory Management |
Carboxylic Acids |
Acids / Bases |
Physical Properties
|
Triethanolamine Jay A. Young
Properties, hazards, and storage requirements for triethanolamine.
Young, Jay A. J. Chem. Educ. 2004, 81, 24.
Laboratory Equipment / Apparatus |
Laboratory Management |
Amines / Ammonium Compounds |
Physical Properties |
Alcohols
|
Lead Acetate Trihydrate Jay A. Young
Properties, hazards, and storage requirements for lead acetate trihydrate.
Young, Jay A. J. Chem. Educ. 2003, 80, 1374.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Mercury(II) Nitrate Monohydrate Jay A. Young
Properties, hazards, and storage requirements for mercury(I) nitrate monohydrate.
Young, Jay A. J. Chem. Educ. 2003, 80, 1373.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Sodium Dichromate Dihydrate Jay A. Young
Properties, hazards, and storage requirements for sodium dichromate dihydrate.
Young, Jay A. J. Chem. Educ. 2003, 80, 1251.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Sodium Hydrogen Carbonate Jay A. Young
Properties, hazards, and storage requirements for sodium hydrogen carbonate.
Young, Jay A. J. Chem. Educ. 2003, 80, 1250.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
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Why Does a Helium-Filled Balloon "Rise"? Richard W. Ramette
The article is a lighthearted, conversational exploration of the microscopic basis for Archimedes principle. The principle is discussed in terms of molecular collisions and density gradients in a gravitational field.
Ramette, Richard W. J. Chem. Educ. 2003, 80, 1149.
Atmospheric Chemistry |
Gases |
Kinetic-Molecular Theory |
Physical Properties
|
Nitrogen, Liquid Jay A. Young
Properties, hazards, and storage requirements for liquid nitrogen.
Young, Jay A. J. Chem. Educ. 2003, 80, 1133.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Hydrogen Peroxide, 3% Jay A. Young
Properties, hazards, and storage requirements for 3% hydrogen peroxide.
Young, Jay A. J. Chem. Educ. 2003, 80, 1132.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
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An Elementary Picture of Dielectric Spectroscopy in Solids: Physical Basis Mario F. García-Sánchez, Jean-Claude M'Peko, A. Rabdel Ruiz-Salvador, Froilan Fernández-Gutierrez, Geonel Rodríguez-Gattorno, Adolfo Delgado, and Yuri Echevarría
The principles of DS of solids are discussed starting from simple concepts. The physical basis is presented, emphasizing the meaning of the magnitudes and phenomena involved, including the microscopic aspects of the chemical nature of solids. The applications, advantages, and limitations of DS are also discussed. Some examples are given that provide a practical overview of the main ideas as well as to show the usefulness of the technique.
García-Sánchez, Mario F.;M'Peko, Jean-Claude; Ruiz-Salvador, A. Rabdel; Fernández-Gutierrez, Froilan; Rodríguez-Gattorno, Geonel; Delgado, Adolfo; Echevarría, Yuri. J. Chem. Educ. 2003, 80, 1062.
Conductivity |
Materials Science |
Physical Properties |
Solids |
Spectroscopy |
Laboratory Computing / Interfacing |
Student-Centered Learning
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Potassium Cyanide Jay A. Young
Properties, hazards, and storage requirements for potassium cyanide.
Young, Jay A. J. Chem. Educ. 2003, 80, 998.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Sodium Cyanide Jay A. Young
Properties, hazards, and storage requirements for sodium cyanide.
Young, Jay A. J. Chem. Educ. 2003, 80, 997.
Laboratory Equipment / Apparatus |
Laboratory Management |
Physical Properties
|
Potassium Dichromate Jay A. Young
Properties, hazards, and storage requirements for potassium dichromate.
Young, Jay A. J. Chem. Educ. 2003, 80, 874.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Potassium Permanganate Jay A. Young
Properties, hazards, and storage requirements for potassium permanganate.
Young, Jay A. J. Chem. Educ. 2003, 80, 873.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Diethyl Phthalate Jay A. Young
Properties, hazards, and storage requirements for diethyl phthalate.
Young, Jay A. J. Chem. Educ. 2003, 80, 736.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Carbon Disulfide Jay A. Young
Properties, hazards, and storage requirements for carbon disulfide.
Young, Jay A. J. Chem. Educ. 2003, 80, 735.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Antimony(III) Chloride Jay A. Young
Properties, hazards, and storage requirements for antimony(III) chloride.
Young, Jay A. J. Chem. Educ. 2003, 80, 611.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Cobalt(II) Chloride Hexahydrate Jay A. Young
Properties, hazards, and storage requirements for cobalt(II) chloride hexahydrate.
Young, Jay A. J. Chem. Educ. 2003, 80, 610.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Isopropyl Ether Jay A. Young
Properties, hazards, and storage requirements for isopropyl ether.
Young, Jay A. J. Chem. Educ. 2003, 80, 609.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Citric Acid Jay A. Young
Properties, hazards, and storage requirements for citric acid.
Young, Jay A. J. Chem. Educ. 2003, 80, 480.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Graphite Jay A. Young
Properties, hazards, and storage requirements for graphite.
Young, Jay A. J. Chem. Educ. 2003, 80, 379.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Calcium Carbide Jay A. Young
Properties, hazards, and storage requirements for calcium carbide.
Young, Jay A. J. Chem. Educ. 2003, 80, 378.
Laboratory Management |
Physical Properties |
Laboratory Equipment / Apparatus
|
Foundations of Physics for Chemists. Oxford Chemistry Primer No. 93 (G. A. D. Ritchie and D. S. Sivia) John P. Ranck
Physics primer for chemistry students.
Ranck, John P. J. Chem. Educ. 2003, 80, 268.
Physical Properties
|
Chromium(VI) Oxide, CrO3 Jay A. Young
Properties, hazards, and storage requirements for chromium(VI) oxide.
Young, Jay A. J. Chem. Educ. 2003, 80, 259.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
Aluminum Oxide, Al2O3 Jay A. Young
Properties, hazards, and storage requirements for aluminum oxide.
Young, Jay A. J. Chem. Educ. 2003, 80, 258.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
Copper(I) Oxide, Cu2O Jay A. Young
Properties, hazards, and storage requirements for copper(I) oxide.
Young, Jay A. J. Chem. Educ. 2003, 80, 257.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
Iron(II) Sulfate Heptahydrate Jay A. Young
Properties, hazards, and storage requirements for iron(II) sulfate heptahydrate.
Young, Jay A. J. Chem. Educ. 2003, 80, 141.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
Zirconium(IV) Oxide Jay A. Young
Properties, hazards, and storage requirements for zirconium(IV) oxide.
Young, Jay A. J. Chem. Educ. 2003, 80, 140.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
CLIP: Glycerol Jay A. Young
Properties, hazards, and storage requirements for glycerol.
Young, Jay A. J. Chem. Educ. 2003, 80, 25.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
CLIP: Ammonia, aqueous Jay A. Young
Properties, hazards, and storage requirements for ammonia.
Young, Jay A. J. Chem. Educ. 2003, 80, 24.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
Sodium Nitrate Jay A. Young
Properties, hazards, and storage requirements for sodium nitrate.
Young, Jay A. J. Chem. Educ. 2002, 79, 1414.
Physical Properties |
Laboratory Management |
Laboratory Equipment / Apparatus
|
Nitric Acid (approx. 70%) Jay A. Young
Properties, hazards, and storage requirements for nitric acid.
Young, Jay A. J. Chem. Educ. 2002, 79, 1413.
Physical Properties |
Laboratory Management |
Acids / Bases |
Laboratory Equipment / Apparatus
|
Sodium Carbonate (anhydrous) Na2CO3 Jay A. Young
Properties, hazards, and storage requirements for anhydrous sodium carbonate.
Young, Jay A. J. Chem. Educ. 2002, 79, 1315.
Laboratory Management |
Physical Properties
|
Sodium Acetate CH3COONa Jay A. Young
Properties, hazards, and storage requirements for sodium acetate.
Young, Jay A. J. Chem. Educ. 2002, 79, 1314.
Laboratory Management |
Physical Properties
|
Sodium Fluoride Jay A. Young
Properties, hazards, and storage requirements for sodium fluoride.
Young, Jay A. J. Chem. Educ. 2002, 79, 1197.
Laboratory Management |
Physical Properties
|
Sodium Hypochlorite Solution Jay A. Young
Properties, hazards, and storage requirements for sodium hypochlorite solution.
Young, Jay A. J. Chem. Educ. 2002, 79, 1196.
Laboratory Management |
Physical Properties
|
Potassium Chromate Jay A. Young
Properties, hazards, and storage requirements for potassium chromate.
Young, Jay A. J. Chem. Educ. 2002, 79, 1065.
Laboratory Management |
Physical Properties
|
Osmium Tetroxide Jay A. Young
Properties, hazards, and storage requirements for osmium tetroxide.
Young, Jay A. J. Chem. Educ. 2002, 79, 1064.
Laboratory Management |
Physical Properties
|
Sulfur (S8) Jay A. Young
Properties, hazards, and storage requirements for sulfur.
Young, Jay A. J. Chem. Educ. 2002, 79, 1063.
Laboratory Management |
Physical Properties
|
Potassium Perchlorate: Chemical Laboratory Information Profile Jay A. Young
Properties, hazards, and storage requirements for potassium perchlorate.
Young, Jay A. J. Chem. Educ. 2002, 79, 937.
Laboratory Management |
Physical Properties
|
Potassium Chlorate: Chemical Laboratory Information Profile Jay A. Young
Properties, hazards, and storage requirements for potassium chlorate.
Young, Jay A. J. Chem. Educ. 2002, 79, 936.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Mercury(I) chloride Jay A. Young
Properties, hazards, and storage requirements for mercury(I) chloride.
Young, Jay A. J. Chem. Educ. 2002, 79, 799.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Sodium thiosulfate pentahydrate Jay A. Young
Properties, hazards, and storage requirements for sodium thiosulfate pentahydrate.
Young, Jay A. J. Chem. Educ. 2002, 79, 798.
Laboratory Management |
Physical Properties
|
Glass Wool Jay A. Young
Properties, hazards, and storage requirements for glass wool.
Young, Jay A. J. Chem. Educ. 2002, 79, 673.
Physical Properties |
Laboratory Management
|
Acetaldehyde Jay A. Young
Properties, hazards, and storage requirements for acetaldehyde.
Young, Jay A. J. Chem. Educ. 2002, 79, 672.
Physical Properties |
Laboratory Management
|
Chemical Laboratory Information Profile: Ethylenediaminetetraacetic Acid Jay A. Young
Properties, hazards, and storage requirements for ethylenediaminetetraacetic acid.
Young, Jay A. J. Chem. Educ. 2002, 79, 426.
Physical Properties |
Laboratory Management |
Acids / Bases
|
Chemical Laboratory Information Profile: Sodium Jay A. Young
Properties, hazards, and storage requirements for sodium.
Young, Jay A. J. Chem. Educ. 2002, 79, 425.
Physical Properties |
Laboratory Management |
Metals
|
Copper(II) Sulfate Pentahydrate Jay A. Young
Properties, hazards, and storage requirements for copper(II) sulfate pentahydrate.
Young, Jay A. J. Chem. Educ. 2002, 79, 158.
Physical Properties |
Laboratory Management
|
Formic Acid Jay A. Young
Properties, hazards, and storage requirements for formic acid.
Young, Jay A. J. Chem. Educ. 2002, 79, 157.
Acids / Bases |
Physical Properties |
Laboratory Management |
Carboxylic Acids
|
Chemical Laboratory Information Profile: Oleic Acid Jay A. Young
Properties, hazards, and storage requirements for oleic acid.
Young, Jay A. J. Chem. Educ. 2002, 79, 24.
Laboratory Management |
Physical Properties |
Acids / Bases
|
Chemical Laboratory Information Profile: Arsenic(III) Oxide Jay A. Young
Properties, hazards, and storage requirements for arsenic(III) oxide.
Young, Jay A. J. Chem. Educ. 2002, 79, 23.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Petroleum Ether Jay A. Young
Properties, hazards, and storage requirements for petroleum ether.
Young, Jay A. J. Chem. Educ. 2001, 78, 1588.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Asbestos Jay A. Young
Properties, hazards, and storage requirements for asbestos.
Young, Jay A. J. Chem. Educ. 2001, 78, 1587.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Sucrose Jay A. Young
Properties, hazards, and storage requirements for sucrose.
Young, Jay A. J. Chem. Educ. 2001, 78, 1460.
Laboratory Management |
Physical Properties |
Carbohydrates
|
Chemical Laboratory Information Profile: Turpentine Jay A. Young
Properties, hazards, and storage requirements for turpentine.
Young, Jay A. J. Chem. Educ. 2001, 78, 1459.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Cobalt(II) Oxide Jay A. Young
Properties, hazards, and storage requirements for cobalt(II) oxide.
Young, Jay A. J. Chem. Educ. 2001, 78, 1328.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Manganese(IV) Oxide Jay A. Young
Properties, hazards, and storage requirements for manganese(IV) oxide.
Young, Jay A. J. Chem. Educ. 2001, 78, 1327.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Iron(III) Oxide Jay A. Young
Properties, hazards, and storage requirements for iron(III) oxide.
Young, Jay A. J. Chem. Educ. 2001, 78, 1326.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Acetic Anhydride Jay A. Young
Properties, hazards, and storage requirements for acetic anhydride.
Young, Jay A. J. Chem. Educ. 2001, 78, 1176.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Acetone Jay A. Young
Properties, hazards, and storage requirements for acetone.
Young, Jay A. J. Chem. Educ. 2001, 78, 1175.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Water Jay A. Young
Properties, hazards, and storage requirements for water.
Young, Jay A. J. Chem. Educ. 2001, 78, 874.
Laboratory Management |
Physical Properties |
Water / Water Chemistry
|
Chemical Laboratory Information Profile: Hydrochloric Acid (approx 36%) Jay A. Young
Properties, hazards, and storage requirements for hydrochloric acid.
Young, Jay A. J. Chem. Educ. 2001, 78, 873.
Laboratory Management |
Physical Properties |
Acids / Bases
|
Chemical Laboratory Information Profile: Sulfuric Acid (approx. 98%) Jay A. Young
Properties, hazards, and storage requirements for concentrated sulfuric acid.
Young, Jay A. J. Chem. Educ. 2001, 78, 722.
Laboratory Management |
Physical Properties |
Acids / Bases
|
Chemical Laboratory Information Profile: Acetic Acid (glacial) Jay A. Young
Properties, hazards, and storage requirements for acetic acid (glacial).
Young, Jay A. J. Chem. Educ. 2001, 78, 721.
Acids / Bases |
Laboratory Management |
Physical Properties |
Carboxylic Acids
|
A Useful System for Microscale and Semi-microscale Fractional Distillation of Air-Sensitive Substances with High Boiling Points J. Alfredo Gutiérrez
A procedure to purify air-sensitive liquids with high boiling points using a horizontal distilling apparatus that avoids extreme refluxing and can efficiently separate the fractions of a mixture.
Gutiérrez, J. Alfredo. J. Chem. Educ. 2001, 78, 653.
Laboratory Equipment / Apparatus |
Liquids |
Microscale Lab |
Separation Science |
Laboratory Management
|
Chemical Laboratory Information Profile: Borax Jay A. Young
Properties, hazards, and storage requirements for borax.
Young, Jay A. J. Chem. Educ. 2001, 78, 588.
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: n-Hexane Jay A. Young
Properties, hazards, and storage requirements for n-hexane.
Young, Jay A. J. Chem. Educ. 2001, 78, 587.
Alkanes / Cycloalkanes |
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Phenolphthalein Solution Jay A. Young
Properties, hazards, and storage requirements for phenolphthalein solution.
Young, Jay A. J. Chem. Educ. 2001, 78, 448.
Acids / Bases |
Dyes / Pigments |
Laboratory Management |
Physical Properties
|
Chemical Laboratory Information Profile: Sodium Hydroxide Jay A. Young
Properties, hazards, and storage requirements for sodium hydroxide.
Young, Jay A. J. Chem. Educ. 2001, 78, 447.
Acids / Bases |
Laboratory Management |
Physical Properties
|
A Simple Laboratory Experiment for the Determination of Absolute Zero Myung-Hoon Kim, Michelle Song Kim, and Suw-Young Ly
A novel method that employs a remarkably simple and inexpensive apparatus and is based on the extrapolation of the volume of a given amount of dry air to zero volume after a volume of air trapped inside a 10-mL graduated cylinder is measured at various temperatures.
Kim, Myung-Hoon; Kim, Michelle Song; Ly, Suw-Young. J. Chem. Educ. 2001, 78, 238.
Gases |
Physical Properties |
Chemometrics
|
Melting Point and Molecular Symmetry R. J. C. Brown and R. F. C. Brown
In 1882 Thomas Carnelley observed that high molecular symmetry is associated with high melting point. The application of the rule to a number of different molecular crystals is discussed. The rule applies to different categories of crystal for different reasons, which can be explained by thermodynamic analysis.
Brown, R. J. C.; Brown, R. F. C. J. Chem. Educ. 2000, 77, 724.
Liquids |
Molecular Properties / Structure |
Phases / Phase Transitions / Diagrams |
Solids |
Thermodynamics |
Physical Properties |
Aromatic Compounds |
Crystals / Crystallography
|
Reply to Inflection at the Triple Point Myers, R. Thomas
Response to challenges in graphing the triple point of water and correction to original article.
Myers, R. Thomas J. Chem. Educ. 2000, 77, 160.
Phases / Phase Transitions / Diagrams |
Physical Properties |
Water / Water Chemistry
|
Inflection at the Triple Point Myers, R. Thomas
Challenges in graphing the triple point of water.
Myers, R. Thomas J. Chem. Educ. 2000, 77, 160.
Phases / Phase Transitions / Diagrams |
Physical Properties |
Water / Water Chemistry
|
Letters
Challenges in graphing the triple point of water.
J. Chem. Educ. 2000, 77, 160.
Phases / Phase Transitions / Diagrams |
Physical Properties |
Water / Water Chemistry
|
Using TOPEX Satellite El Niño Altimetry Data to Introduce Thermal Expansion and Heat Capacity Concepts in Chemistry Courses Harvey F. Blanck
Warm water is less dense than cool water and will float somewhat like ice, with a portion above the surface of the cooler surrounding water. The height of the bump can be used to estimate the excess thermal energy in the warmer water.
Blanck, Harvey F. J. Chem. Educ. 1999, 76, 1635.
Liquids |
Thermodynamics |
Water / Water Chemistry |
Calorimetry / Thermochemistry
|
How To Learn and Have Fun with Poly(Vinyl Alcohol) and White Glue V. de Zea Bermudez, P. Passos de Almeida, and J. Féria Seita
The general behavior of Newtonian, shear-thinning, shear-thickening, thixotropic, negative thixotropic, and viscoelastic fluids is characterized and briefly discussed in terms of existing theoretical models. Whenever possible, examples of these types of fluids taken from everyday life are given for better understanding.
de Zea Bermudez, Verónica; de Almeida, P. Passos; Seita, J. Féria. J. Chem. Educ. 1998, 75, 1410.
Alcohols |
Liquids
|
Integrating Computers into the First-Year Chemistry Laboratory: Application of Raoult's Law to a Two-Component System R. Viswanathan and G. Horowitz
First-year chemistry students are introduced to a spreadsheet program to calculate the boiling points of a two-component solution containing a volatile solute. The boiling points are predicted by combining the Clausius-Clapeyron equation and Raoult's law. A simple experimental setup is used to measure the boiling points of solutions of varying compositions.
Viswanathan, Raji; Horowitz, Gail. J. Chem. Educ. 1998, 75, 1124.
Laboratory Computing / Interfacing |
Physical Properties |
Solutions / Solvents |
Phases / Phase Transitions / Diagrams
|
Boiling Point and Molecular Weight Rich, Ronald L.
No relationship between boiling points and molecular weight.
Rich, Ronald L. J. Chem. Educ. 1996, 73, A294.
Physical Properties |
Hydrogen Bonding |
Noncovalent Interactions
|
Letters
No relationship between boiling points and molecular weight.
J. Chem. Educ. 1996, 73, A294.
Physical Properties |
Hydrogen Bonding |
Noncovalent Interactions
|
An Organoleptic Laboratory Experiment John M. Risley
Compounds in ten different classes of organic molecules that are used in the fragrance and food industry are provided to students. Students whiff the vapors of each compound and describe the organoleptic properties using a set of terms utilized in the fragrance and food industry. A set of questions guides students to an understanding of the relationship between structure of molecules and smell.
Risley, John M. J. Chem. Educ. 1996, 73, 1181.
Molecular Properties / Structure |
Consumer Chemistry |
Physical Properties |
Nonmajor Courses |
Alcohols |
Aldehydes / Ketones |
Amines / Ammonium Compounds |
Carboxylic Acids |
Esters |
Ethers |
Phenols
|
Polymer Mechanical Properties via a New Laboratory Tensile Tester T. Carter Gilmer, Matthew Williams,
A laboratory tensile testing device has been developed, which allows quick and inexpensive measurements of tensile properties of polymeric materials in a uni-axial mode. The device is mostly for instructive purposes and is not necessarily precise enough to collect research mechanical property data.
Gilmer, T. Carter; Williams, Matthew. J. Chem. Educ. 1996, 73, 1062.
Physical Properties |
Laboratory Equipment / Apparatus
|
Effects of Solution Physical Properties on Copper and Chromium Signals in Flame Atomic Absorption Spectrometry Fàbio R. P. Rocha, Joaquim A. Nòbrega
Instrumental techniques, such as flame atomic absorption spectrometry (FAAS), are frequently used in chemical analysis. Independently of the technique used, the chemical principles must be considered to assure that the analytical results are correct.
Rocha, Fàbio R. P.; Nòbrega , Joaquim A. J. Chem. Educ. 1996, 73, 982.
Physical Properties |
Atomic Spectroscopy |
Qualitative Analysis |
Solutions / Solvents |
Instrumental Methods
|
First Day in Organic Lab Christine K. F. Hermann
This experiment is designed to introduce students to the techniques of reflux, distillation, gas chromatography, and the determination of boiling point and melting point during one lab period.
J. Chem. Educ. 1996, 73, 852.
Separation Science |
Gas Chromatography |
Physical Properties |
Qualitative Analysis |
Instrumental Methods
|
The Vapor Pressure of Liquid Binary Solutions: An Experiment for the Physical Chemistry Laboratory Luis H. Blanco, Carmen M. Romero, and Ricardo Munar
Procedure to demonstrate the ideal solution model and deviations from it; include data and analysis.
Blanco, Luis H.; Romero, Carmen M.; Munar, Ricardo. J. Chem. Educ. 1995, 72, 1144.
Aqueous Solution Chemistry |
Liquids |
Gases |
Solutions / Solvents
|
Computation of Vapor Pressure Abrol, Ravinder
180. Bits and pieces, 55. FORTRAN 77 program that computes the vapor pressures for any cubic equation of state using the exact Cardan's solution of a cubic polynomial.
Abrol, Ravinder J. Chem. Educ. 1995, 72, 1083.
Liquids |
Gases
|
Spectrofluorimeters as Light-Scattering Apparatus: Application to Polymers Molecular Weight Determination Mougan, Manuel A.; Coello, Adela; Jover, Aida; Meijide, Francisco; Vazquez Tato, Jose
Procedure for determining the molecular weight of polymers using fluorescent spectroscopy; includes sample data and analysis, and listing of molecular weight determinations appearing in previous issues of JCE.
Mougan, Manuel A.; Coello, Adela; Jover, Aida; Meijide, Francisco; Vazquez Tato, Jose J. Chem. Educ. 1995, 72, 284.
Fluorescence Spectroscopy |
Physical Properties
|
A Novel Method for Examination of Vapor-Liquid Equilibria Knewstubb, P. F.
Method and apparatus for obtaining reasonably accurate vapor-liquid equilibrium data; sample data and analysis included.
Knewstubb, P. F. J. Chem. Educ. 1995, 72, 261.
Rate Law |
Laboratory Equipment / Apparatus |
Equilibrium |
Gases |
Liquids
|
Experiments for Modern Introductory Chemistry: The Temperature Dependence of Vapor Pressure Kildahl, Nicholas; Berka, Ladislav H.
Gas chromatography experiment that allows the discovery of the temperature dependence of the vapor pressure of a pure liquid; includes sample data and analysis.
Kildahl, Nicholas; Berka, Ladislav H. J. Chem. Educ. 1995, 72, 258.
Gases |
Liquids |
Gas Chromatography
|
Analysis of Cryoscopy Data Wloch, Peter; Cherniak, E. A.
Method for analyzing cryoscopic data with applications to freezing point depression; includes data and analysis.
Wloch, Peter; Cherniak, E. A. J. Chem. Educ. 1995, 72, 59.
Physical Properties |
Physical Properties |
Stoichiometry
|
Solving Nonlinear Simultaneous Equations by the Method of Successive Substitution: Applications to Equations of State Eberhart, J. G.
Several student programming exercises based on the use of various equations of state to predict a variety of fluid properties are described.
Eberhart, J. G. J. Chem. Educ. 1994, 71, 1038.
Liquids |
Phases / Phase Transitions / Diagrams |
Physical Properties
|
The Determination of Number-Average Molecular Weight: A Polymer Experiment for Lower-Division Chemistry Students Williams, Kathryn R.; Bernier, Ulrich R.
Procedure to determine the number-average molecular weight of a polymer.
Williams, Kathryn R.; Bernier, Ulrich R. J. Chem. Educ. 1994, 71, 265.
Physical Properties
|
Polymer additives: Part I. Mechanical property modifiers Stevens, Malcolm P.
Discussion of both organic and inorganic materials added to polymers to modify their properties.
Stevens, Malcolm P. J. Chem. Educ. 1993, 70, 444.
Physical Properties |
Materials Science |
Applications of Chemistry
|
Intensive and extensive: Underused concepts Canagaratna, Sebastian G.
Methods for teaching intensive and extensive properties.
Canagaratna, Sebastian G. J. Chem. Educ. 1992, 69, 957.
Physical Properties |
Thermodynamics
|
A modern vapor pressure apparatus based on the isoteniscope. Van Hecke, Gerald R.
Equipment used for vapor pressure measurements that eliminates use of a mercury manometer.
Van Hecke, Gerald R. J. Chem. Educ. 1992, 69, 681.
Laboratory Equipment / Apparatus |
Gases |
Liquids
|
Simple soda bottle solubility and equilibria Snyder, Cheryl A.; Snyder, Dudley C.
Using a bottle of selzter water and bromocresol green to demonstrate gas-liquid solubility (carbon dioxide in water).
Snyder, Cheryl A.; Snyder, Dudley C. J. Chem. Educ. 1992, 69, 573.
Solutions / Solvents |
Precipitation / Solubility |
Equilibrium |
Gases |
Liquids |
Aqueous Solution Chemistry |
Water / Water Chemistry
|
Fugacity-More than a fake pressure Donkersloot, Maarten C. A.
The equivalence of fugacity and chemical potential, in terms of dependence on pressure, should be obvious to any student based on the following equations.
Donkersloot, Maarten C. A. J. Chem. Educ. 1992, 69, 290.
Gases |
Physical Properties |
Thermodynamics
|
A least-squares technique for determining the van der Waals parameters from the critical constants. Eberhart, J. G.
The author reviews three of the six methods for calculating the van der Waals constants for a fluid.
Eberhart, J. G. J. Chem. Educ. 1992, 69, 220.
Noncovalent Interactions |
Physical Properties
|
An alternative view of fugacity. Combs, Leon L.
The author notes two conceptual problems with the normal derivation of fugacity equations and offers a solution.
Combs, Leon L. J. Chem. Educ. 1992, 69, 218.
Gases |
Physical Properties
|
Studying odd-even effects and solubility behavior using alpha, omega-dicarboxylic acids Burrows, Hugh D.
Odd-even effect provides a satisfying way of introducing students to a large area of chemistry that encompasses both classical thermodynamics and applied aspects.
Burrows, Hugh D. J. Chem. Educ. 1992, 69, 69.
Precipitation / Solubility |
Physical Properties |
Thermodynamics
|
Demonstrations of interfacial phenomena Prall, Bruce R.
Overhead projector demonstrations that illustrate the interfacial interactions of the following systems: 1) water and carbon tetrachloride, 2) copper wire and water, 3) 1-Octanol and water.
Prall, Bruce R. J. Chem. Educ. 1991, 68, 592.
Surface Science |
Liquids |
Water / Water Chemistry |
Solutions / Solvents
|
Ice under pressure Chang, Raymond; Skinner, James F.
A piece of steel music wire pulled through a block of ice by weights on either side.
Chang, Raymond; Skinner, James F. J. Chem. Educ. 1990, 67, 789.
Water / Water Chemistry |
Physical Properties
|
A reusable apparatus for the convenient determination of the molecular weight of air- or moisture-sensitive compounds Zoellner, Robert W.
Construction and application of an apparatus for the determination of the apparent molecular weight of air- or moisture sensitive compounds employing Singer's method of isothermal distillation.
Zoellner, Robert W. J. Chem. Educ. 1990, 67, 714.
Laboratory Equipment / Apparatus |
Physical Properties
|
Distillation and the Macintosh: PT Nomograph, an "in-lab" utility Simon, R.; Senecal, T.
115. Bits and pieces, 44. This program duplicates the generic pressure-temperature nomograph, found in a variety of sources, for the detection of the boiling point of a liquid under reduced pressure.
Simon, R.; Senecal, T. J. Chem. Educ. 1990, 67, 505.
Phases / Phase Transitions / Diagrams |
Physical Properties |
Liquids
|
The direct relation between altitude and boiling point Earl, Boyd L.
Since the physical parameter whose variation is responsible for the change in boiling point due to altitude is atmospheric pressure, one must make the connection between boiling point and altitude via the pressure, which is directly connected to both.
Earl, Boyd L. J. Chem. Educ. 1990, 67, 45.
Thermodynamics |
Phases / Phase Transitions / Diagrams |
Physical Properties |
Water / Water Chemistry
|
Using a Dumas bulb to determine the molecular weight of a volatile liquid Kawa, Christopher J.
The use of an aspirator improves the filling and emptying process of a Dumas bulb.
Kawa, Christopher J. J. Chem. Educ. 1989, 66, 336.
Laboratory Equipment / Apparatus |
Laboratory Management |
Liquids
|
Buoyancy measurements for teaching and research Miller, Bernard
The following examination of the venerable buoyancy principle can serve as a simple but rigorous illustration of a falsification test that not only clears up a possible misconception but also points the way to a number of practical uses of buoyancy measurements that have not generally been recognized.
Miller, Bernard J. Chem. Educ. 1989, 66, 267.
Liquids |
Physical Properties
|
Saturation properties at a given temperature from cubic equations of state Aguirre-Ode, Fernando
99. Bits and pieces, 39. The advantage of cubic equations of state (EOS) lies in the fact that they can be solved analytically for the volume of a real gas when both the temperature and pressure are given.
Aguirre-Ode, Fernando J. Chem. Educ. 1989, 66, 54.
Thermodynamics |
Physical Properties
|
A simple demonstration of the activation energy concept Rocha-Filho, Romeu C.
A demonstration based on the high coefficient of thermal expansion of organic liquid substances.
Rocha-Filho, Romeu C. J. Chem. Educ. 1988, 65, 157.
Physical Properties
|
On the boiling points of the alkyl halides Correla, John
Most textbooks spend some time discussing the relationship between boiling point and molecular structure, however, their reasons behind this relationship differ. This variation among textbooks warrants further investigation and discussion in order to uncover which of the factors are the major contributors to the variation of boiling point.
Correla, John J. Chem. Educ. 1988, 65, 62.
Alkanes / Cycloalkanes |
Physical Properties |
Noncovalent Interactions |
Molecular Properties / Structure
|
A safe cell for viewing the critical point of CO2 Botch, Beatrice; Battino, Rubin
Design, construction, and use of a safe cell for viewing the critical point of CO2.
Botch, Beatrice; Battino, Rubin J. Chem. Educ. 1987, 64, 347.
Laboratory Equipment / Apparatus |
Phases / Phase Transitions / Diagrams |
Gases |
Liquids
|
Classroom demonstrations of polymer principles. Part I. Molecular structure and molecular mass Rodriguez, F.; Mathias, L. J.; Kroschwitz, J.; Carraher, C. E., Jr.
Suggestions for models and techniques to illustrate the structure of polymers, copolymers, molecular mass, osmotic pressure, light scattering, and dilute solution viscosity.
Rodriguez, F.; Mathias, L. J.; Kroschwitz, J.; Carraher, C. E., Jr. J. Chem. Educ. 1987, 64, 72.
Molecular Properties / Structure |
Physical Properties
|
Construction of a temperature-composition diagram of a binary mixture: An organic chemistry laboratory experiment Thorstenson, Patricia C.
The procedure described in this article offers a simple means of generating the liquid curve of a temperature-composition diagram for a binary mixture of volatile liquids.
Thorstenson, Patricia C. J. Chem. Educ. 1986, 63, 170.
Separation Science |
Liquids
|
Microscale organic laboratory: III: A simple procedure for carrying out ultra-micro boiling point determinations Mayo, Dana W.; Pike, Ronald M.; Butcher, Samuel S.; Meredith, Marcia L.
Reproducible and reasonably accurate boiling points can be observed on 3-4 microliters of many liquids using a modified Wiegand procedure.
Mayo, Dana W.; Pike, Ronald M.; Butcher, Samuel S.; Meredith, Marcia L. J. Chem. Educ. 1985, 62, 1114.
Microscale Lab |
Physical Properties
|
Molecular size and Raoult's Law Kovac, Jeffrey
An additional cause for deviations from Raoult's Law that is rarely, if ever, mentioned in freshman chemistry texts.
Kovac, Jeffrey J. Chem. Educ. 1985, 62, 1090.
Molecular Properties / Structure |
Physical Properties |
Solutions / Solvents |
Gases
|
Molecular association and structure of hydrogen peroxide Gigure, Paul A.
The typical textbook treatment of molecular association and structure of hydrogen peroxide, and the implications of these concepts for the physical properties of hydrogen peroxide tend to be oversimplified and inaccurate.
Gigure, Paul A. J. Chem. Educ. 1983, 60, 399.
Molecular Properties / Structure |
Physical Properties |
Phases / Phase Transitions / Diagrams |
Hydrogen Bonding
|
Activity coefficients of acetone-chloroform solutions: an undergraduate experiment Ozog, J. Z.; Morrison, J. A.
The simple experiment described in this article gives unsurprisingly good results for the acetone-chloroform system.
Ozog, J. Z.; Morrison, J. A. J. Chem. Educ. 1983, 60, 72.
Liquids |
Solutions / Solvents |
Separation Science
|
An effective demonstration of some properties of real vapors Metsger, D. Scott
The apparatus described in this article has been found by the authors to be the most effective in vividly illustrating the behavior of a nearly ideal gas to first year chemistry students.
Metsger, D. Scott J. Chem. Educ. 1983, 60, 67.
Laboratory Equipment / Apparatus |
Gases |
Physical Properties |
Solids
|
APPLESEARCH - A mass spectral search system Traeger, John C.
32. Bits and pieces, 12.
Traeger, John C. J. Chem. Educ. 1982, 59, 779.
Mass Spectrometry |
Physical Properties |
Molecular Properties / Structure
|
The use of a filmstrip projector to present a critical point demonstration Nyquist, H. LeRoy
A demonstration to illustrate the concepts of critical temperature and critical pressure.
Nyquist, H. LeRoy J. Chem. Educ. 1982, 59, 522.
Gases |
Liquids
|
Two safety improvements for a standard experiment on the boiling point-composition diagram of a binary system Michiels, Bro. Leo P.; Barile, Raymond C.; de la Fuente, German F.
Replacing the benzene / ethanol system with the less toxic cyclohexane / 2-propanol system and using a hetaing mantle.
Michiels, Bro. Leo P.; Barile, Raymond C.; de la Fuente, German F. J. Chem. Educ. 1982, 59, 157.
Phases / Phase Transitions / Diagrams |
Liquids |
Gases |
Laboratory Management
|
Paramagnetism and color of liquid oxygen: A lecture demonstration Shakhashiri, Bassam Z.; Dirreen, Glen E.; Williams, Lloyd G.
Demonstrates the blue color of liquid oxygen and its ability to be held between the poles of a magnet.
Shakhashiri, Bassam Z.; Dirreen, Glen E.; Williams, Lloyd G. J. Chem. Educ. 1980, 57, 373.
Magnetic Properties |
Phases / Phase Transitions / Diagrams |
Liquids
|
Illustrating chemical concepts through food systems: Introductory chemistry experiments Chamber, IV, E.; Setser, C. S.
Illustrating the vaporization of liquids, reaction rates, adsorption, properties of solutions, colloidal dispersions, suspensions, and hydrogen ion concentration using foods.
Chamber, IV, E.; Setser, C. S. J. Chem. Educ. 1980, 57, 312.
Food Science |
Applications of Chemistry |
Liquids |
Phases / Phase Transitions / Diagrams |
Solutions / Solvents |
Colloids |
Acids / Bases
|
Lecture demonstration of vanishing meniscus in vapor liquid transition Duus, H. C.
Shows how the interface between vapor and liquid propane vanishes.
Duus, H. C. J. Chem. Educ. 1979, 56, 614.
Liquids |
Gases |
Phases / Phase Transitions / Diagrams
|
Organic laboratory Lenox, Ronald S.
This question tests the student's ability to draw scientific conclusions from experimental observations and knowledge of ideal and non-ideal behavior of liquids.
Lenox, Ronald S. J. Chem. Educ. 1977, 54, 756.
Liquids
|
Gasoline vapor: An invisible pollutant Stephens, Edgar R.
An apparatus and procedure to demonstrate the substantial contribution vaporized gasoline makes to hydrocarbon pollution.
Stephens, Edgar R. J. Chem. Educ. 1977, 54, 682.
Physical Properties |
Gases |
Atmospheric Chemistry
|
Molecular weight determination of weak acids Wilson, Stephen A.; Weber, James H.
The use of virial equations for the calculation of molecular weights of weak acids from colligative property experiments.
Wilson, Stephen A.; Weber, James H. J. Chem. Educ. 1977, 54, 513.
Physical Properties |
Molecular Properties / Structure |
Acids / Bases |
pH
|
Qualitative Observations Concerning Packing Densities for Liquids, Solutions, and Random Assemblies of Spheres Duer, W. C.; Greenstein, J. R.; Oglesby, G. B.; Millero, F. J.
Discusses comparisons of packing densities derived from known molar volume data of liquids and solutions with packing densities that have been observed for assemblies of randomly packed spheres, and suggests further studies that should prove useful in determining the utility of these assemblies of spheres as models for simple liquids and solutions.
Duer, W. C.; Greenstein, J. R.; Oglesby, G. B.; Millero, F. J. J. Chem. Educ. 1977, 54, 139.
Solutions / Solvents |
Liquids |
Aqueous Solution Chemistry
|
Experiments with butane lighter fluid Davenport, Derek A.
Non-disposable butane lighters make possible useful semi-quantitative experiments.
Davenport, Derek A. J. Chem. Educ. 1976, 53, 306.
Physical Properties |
Molecular Properties / Structure |
Alkylation
|
The latent heat of vaporization of an organic solid: An undergraduate experiment Khouw, B. H.; Pritchard, H. O.
A series of experiments based on a mass spectrometer to help students visualize the latent heat of vaporization for a relatively involatile solid.
Khouw, B. H.; Pritchard, H. O. J. Chem. Educ. 1975, 52, 730.
Phases / Phase Transitions / Diagrams |
Laboratory Equipment / Apparatus |
Physical Properties |
Mass Spectrometry |
Gas Chromatography
|
The commonness of the phenomenon of azeotropy Kurtyka, Zdzislaw M.
The opinion that azeotropy is a rarely encountered phenomenon is not justified and should be abandoned.
Kurtyka, Zdzislaw M. J. Chem. Educ. 1975, 52, 366.
Physical Properties
|
Phase changes of hexachloroethane Shavitz, Richard
A demonstration of the sublimation of hexachloroethane.
Shavitz, Richard J. Chem. Educ. 1975, 52, 231.
Phases / Phase Transitions / Diagrams |
Physical Properties
|
The mercury-water system. A deviation from Raoult's Law Sanders, M. L.; Beckett, R. R.
Mercury covered with a layer of water will continue to vaporize and escape as if the water were not even there.
Sanders, M. L.; Beckett, R. R. J. Chem. Educ. 1975, 52, 117.
Liquids |
Phases / Phase Transitions / Diagrams |
Thermodynamics
|
Diphenyl ether. A versatile substance for laboratory demonstrations Cases, Jaime C.
The purification, properties, and uses of diphenyl ether in a variety of demonstrations.
Cases, Jaime C. J. Chem. Educ. 1973, 50, 420.
Ethers |
Solid State Chemistry |
Physical Properties |
Aromatic Compounds
|
Selected properties of selected solvents Nilles, George P.; Schuetz, Robert D.
Selected properties of fifty common solvents.
Nilles, George P.; Schuetz, Robert D. J. Chem. Educ. 1973, 50, 267.
Physical Properties |
Solutions / Solvents
|
Sealed tube experiments Campbell, J. A.
Lists and briefly describes a large set of "sealed tube experiments," each of which requires less than five minutes to set-up and clean-up, requires less than five minutes to run, provides dramatic results observable by a large class, and illustrates important chemical concepts.
Campbell, J. A. J. Chem. Educ. 1970, 47, 273.
Thermodynamics |
Crystals / Crystallography |
Solids |
Liquids |
Gases |
Rate Law |
Equilibrium
|
An attachment for semiautomatic melting point determination Vogel, George
This simple yet rugged device notifies the experimenter when a small crystalline sample in a capillary tube first begins to melt.
Vogel, George J. Chem. Educ. 1969, 46, 789.
Laboratory Equipment / Apparatus |
Phases / Phase Transitions / Diagrams |
Physical Properties |
Laboratory Management
|
Degassing samples of low volatility Rondeau, Roger E.
Presents a device and procedure for degassing liquid samples with low volatility.
Rondeau, Roger E. J. Chem. Educ. 1969, 46, 504.
Laboratory Equipment / Apparatus |
Liquids |
Gases
|
Safe use of flammable liquids in laboratories Shaw, A. J.
Examines the properties of flammable liquids, as well as their safe handling and proper safety equipment.
Shaw, A. J. J. Chem. Educ. 1968, 45, A821.
Liquids |
Laboratory Management
|
Moisture measurement Ewing, Galen W.
Reviews a wide variety of analytical methods and commercial devices for measuring moisture content in gases, liquids, and solids.
Ewing, Galen W. J. Chem. Educ. 1968, 45, A377.
Instrumental Methods |
Gases |
Liquids |
Solids |
Water / Water Chemistry
|
Apparatus for determining vapor density Uglum, K. L.; Carson, L. M.; Riley, R. V.
Presents a simplified vapor-density experiment suitable for use as a freshman demonstration or an undergraduate physical chemistry experiment.
Uglum, K. L.; Carson, L. M.; Riley, R. V. J. Chem. Educ. 1968, 45, 203.
Gases |
Laboratory Equipment / Apparatus |
Physical Properties
|
Liquid nitrogen level control Andrew, John T. S.; Current, Jerry H.
This short not presents a circuit diagram for a simple liquid nitrogen level control device.
Andrew, John T. S.; Current, Jerry H. J. Chem. Educ. 1968, 45, 803.
Liquids |
Laboratory Equipment / Apparatus
|
A simple vacuum apparatus for lecture experiments Peterson, L. K.; Ruddy, F. H.
Describes a simple vacuum apparatus and examples of its use in lecture situations.
Peterson, L. K.; Ruddy, F. H. J. Chem. Educ. 1968, 45, 742.
Laboratory Equipment / Apparatus |
Gases |
Liquids |
Physical Properties |
Transport Properties |
Stoichiometry |
Calorimetry / Thermochemistry
|
Computer simulation of experimental data Shwendeman, R. H.
This note describes some of the techniques in programming used to generate a sufficient variety of experimental data to provide each student with his own set of numbers for analysis in conjunction with the demonstration laboratory.
Shwendeman, R. H. J. Chem. Educ. 1968, 45, 665.
Molecular Properties / Structure |
Physical Properties |
Gas Chromatography
|
An apparatus for large-scale sublimation Walter, Robert I.
Presents an apparatus that is faster than the standard cold-finger type apparatus for vacuum sublimation.
Walter, Robert I. J. Chem. Educ. 1968, 45, 538.
Laboratory Equipment / Apparatus |
Physical Properties
|
Simple construction to determine protein molecular weights by the osmotic pressure method Candlish, John K.
This short note presents a simple device to determine protein molecular weights through osmotic pressure.
Candlish, John K. J. Chem. Educ. 1968, 45, 93.
Molecular Properties / Structure |
Proteins / Peptides |
Physical Properties
|
Microboiling point determination at atmospheric pressure Chaco, M. C.
This microboiling point determination uses a melting-point capillary
Chaco, M. C. J. Chem. Educ. 1967, 44, 474.
Phases / Phase Transitions / Diagrams |
Microscale Lab |
Physical Properties
|
Hard sphere simulation of statistical mechanical behavior of molecules Plumb, Robert C.
Describes the design and use of a demonstration device to illustrate the kinetic behavior of gases, liquids, and solids.
Plumb, Robert C. J. Chem. Educ. 1966, 43, 648.
Statistical Mechanics |
Gases |
Liquids |
Solids |
Kinetic-Molecular Theory |
Equilibrium |
Phases / Phase Transitions / Diagrams
|
The indirect determination of the heat capacity, Cp, of a liquid Gill, S. J.; West, Earl M.
The use of a Maxwell relation permits the substitution of an experimentally accessible partial derivative for an experimentally difficult derivative without making any heat measurements.
Gill, S. J.; West, Earl M. J. Chem. Educ. 1966, 43, 557.
Physical Properties
|
Manometric apparatus for vapor and solution studies Taha, Ahmed A.; Grigsby, Ronald D.; Johnson, James R.; Christian, Sherril D.; Affsprung, Harold E.
Presents a device that can be sued to obtain vapor density and PVT measurements, vapor pressures of solutions and liquids, dew-point pressures and compositions, solubilities of gases in liquids, solubilities of slightly-miscible liquids, equilibrium constants for association reactions in solutions, interactions of vapors and gases with solids, and gas and vapor viscosities.
Taha, Ahmed A.; Grigsby, Ronald D.; Johnson, James R.; Christian, Sherril D.; Affsprung, Harold E. J. Chem. Educ. 1966, 43, 432.
Laboratory Equipment / Apparatus |
Physical Properties |
Solutions / Solvents |
Gases |
Liquids |
Solids
|
Simple two-dimensional magnetic disc models of ionic liquids Angell, C. A.; Gruen, D. M.
Modeling ionic liquids using magnetic, elastomer-bonded materials capable of floating on water.
Angell, C. A.; Gruen, D. M. J. Chem. Educ. 1966, 43, 194.
Molecular Modeling |
Liquids |
Solutions / Solvents
|
Letters Robertson, R. E.
Describes a safe solution to problems with squeeze bottles containing high vapor pressure liquids.
Robertson, R. E. J. Chem. Educ. 1965, 42, 457.
Laboratory Equipment / Apparatus |
Liquids
|
The effect of structure on chemical and physical properties of polymers Price, Charles C.
Suggests using polymers to teach the effect of changes in structure on chemical reactivity, the effect of structure on physical properties, the role of catalysts, and the basic principles of a chain reaction mechanism.
Price, Charles C. J. Chem. Educ. 1965, 42, 13.
Physical Properties |
Molecular Properties / Structure |
Polymerization |
Kinetics |
Reactions |
Catalysis |
Mechanisms of Reactions
|
Melting point tables of organic compounds (Utermark, Walter; Schicke, Walter) Reinheimer, John D.
Reinheimer, John D. J. Chem. Educ. 1964, 41, A590.
Physical Properties
|
Letters Gates, Henry S.
Brings the reader's attention to work done by Petit and Dulong in revising a large number of atomic weights in order to bring all of their reported atomic heat capacities into agreement with the hypothesis that atomic heat capacity is the same for all elements.
Gates, Henry S. J. Chem. Educ. 1964, 41, 575.
Atomic Properties / Structure |
Physical Properties
|
The physical and chemical character of graphite Tee, Peter A. H.; Tonge, Brian L.
Examines the physical and chemical character of graphite, its occurrence and manufacture, and uses and future applications.
Tee, Peter A. H.; Tonge, Brian L. J. Chem. Educ. 1963, 40, 117.
Physical Properties
|
Textbook errors: XX. Miscellanea No. 2 Mysels, Karol J.
Subjects considered include the meaning of "element," the solubility of phenol in carbonate solutions, and the change of vapor pressure with temperature.
Mysels, Karol J. J. Chem. Educ. 1958, 35, 568.
Precipitation / Solubility |
Phenols |
Gases |
Liquids
|
A simplified isoteniscope for vapor pressure measurements Sternberg, James C.
A modified isoteniscope method has been developed using an isoteniscope that is simple to operate and which the undergraduate can easily assemble himself.
Sternberg, James C. J. Chem. Educ. 1957, 34, 442.
Laboratory Equipment / Apparatus |
Liquids |
Gases
|
A nomograph for correction of boiling points Myers, R. Thomas
Provides a nomograph for the correction of boiling points at elevations above sea level.
Myers, R. Thomas J. Chem. Educ. 1957, 34, 58.
Physical Properties |
Phases / Phase Transitions / Diagrams
|
A convenient method of determining vapor pressures Leonard, J. M; Bultman, J. D.
This apparatus can be used with equal facility for solids and liquids.
Leonard, J. M; Bultman, J. D. J. Chem. Educ. 1956, 33, 623.
Liquids |
Gases |
Phases / Phase Transitions / Diagrams |
Solids
|
Hydrogen bonding and physical properties of substances Ferguson, Lloyd N.
Physical properties influenced by hydrogen bonding considered in this paper include transition temperatures, vapor pressure, water solubility, the ionization of carboxylic acids, stereoisomerism, adsorption, and infrared spectra.
Ferguson, Lloyd N. J. Chem. Educ. 1956, 33, 267.
Hydrogen Bonding |
Noncovalent Interactions |
Physical Properties |
Aqueous Solution Chemistry |
Carboxylic Acids |
Stereochemistry |
IR Spectroscopy
|
Textbook errors: III. The solubility of gases in liquids Mysels, Karol J.
Rising temperature is generally said to reduce the solubility of gases in liquids, yet the facts disagree with any such generalization.
Mysels, Karol J. J. Chem. Educ. 1955, 32, 399.
Gases |
Liquids |
Precipitation / Solubility |
Solutions / Solvents
|
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