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Isotopes: Heavy Water Ice Cubes An H2O ice cube is shown to float in a beaker of liquid water, while an ice cube of D2O (heavy water) is shown to sink in liquid water.
Construction of a Polyaniline Nanofiber Gas SensorShabnam Virji, Bruce H. Weiller, Jiaxing Huang, Richard Blair, Heather Shepherd, Tanya Faltens, Philip C. Haussmann, Richard B. Kaner, and Sarah H. Tolbert The objectives of this lab are to synthesize different diameter polyaniline nanofibers and compare them as sensor materials. Its advantages include simplicity and low cost, making it suitable for both high school and college students, particularly in departments with modest means. Virji, Shabnam; Weiller, Bruce H.; Huang, Jiaxing; Blair, Richard; Shepherd, Heather; Faltens, Tanya; Haussmann, Philip C.; Kaner, Richard B.; Tolbert, Sarah H. J. Chem. Educ.2008, 85, 1102.
Acids / Bases |
Aromatic Compounds |
Conductivity |
Hydrogen Bonding |
Oxidation / Reduction |
Oxidation State |
pH |
Polymerization |
Synthesis
Using Molecular Dynamics Simulation To Reinforce Student Understanding of Intermolecular ForcesPhillip 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
Six Pillars of Organic ChemistryJoseph J. Mullins This article focuses on a core set of conceptselectronegativity, polar covalent bonding, inductive and steric effects, resonance, and aromaticitythe proper application of which can explain and predict a wide variety of chemical, physical, and biological properties of molecules and conceptually unite important features of general, organic, and biochemistry. Mullins, Joseph J. J. Chem. Educ.2008, 85, 83.
