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Combustion Reactions Combustion reactions of methane, hydrogen, hexane, and natural gas in chlorine are demonstrated.
Reactions
Reactions of Sulfurous Acid These demonstrations illustrate the production and effects of sulfur dioxide, a pollutant generated by the burning of sulfur impurities in coal. The sulfurous acid produced by dissolving sulfur dioxide in water is allowed to react with various forms of calcium carbonate found in nature, namely marble, limestone, chalk, and eggshell.
Acids / Bases |
Precipitation / Solubility |
Reactions
Exploding Soap Bubbles: Hydrogen + Oxygen A series of three videos shows that as the ratio of oxygen to hydrogen in soap bubbles increases, the explosions that occur when the bubbles are ignited get louder. (The fact that with an excess of oxygen the explosions would become softer again is not shown.) Each video is repeated with no voice-over so that only the sounds of the explosions are heard. Five still images are provided to show the stoichiometry on the molecular scale. The videos are intended to be shown in order beginning with Hydrogen Alone and ending with hydrogen plus more oxygen.
Thermodynamics : DetermineRxnFavored (8 Variations) When industrial plants burn coal, sulfur dioxide is produced. Sulfur dioxide is a primary pollutant that contributes to both industrial smog and acid rain. Is this process of producing sulfur dioxide product-favored? Using
EnergyJohn W. Moore Scientific Challenges in Sustainable Energy Technology, by Nathan S. Lewis of the California Institute of Technology, summarizes data on energy resources and analyses the implications for human society. Slides, text, and streaming audio/video are available at his Web site. There is much in this presentation that could (and should) be incorporated into chemistry pedagogy. Moore, John W. J. Chem. Educ.2008, 85, 891.
Thermodynamics
Scientific–Chemical Viewpoints Regarding Smoking: A Science Laboratory for AllRon Blonder This article describes a lab that examines the acidity of cigarette smoke as well as solid particles and vapor phase substances found therein, and simulates the effects of smoking on the lungs. The aim of this activity is to expose adolescents to the scientific aspects of smoking and the relevance of chemistry in everyday life. Blonder, Ron. J. Chem. Educ.2008, 85, 248.
Acids / Bases |
Consumer Chemistry |
Gases |
Laboratory Equipment / Apparatus |
pH |
Applications of Chemistry |
Student-Centered Learning
Flame Emission Spectrometry in General Chemistry Labs: Solubility Product (Ksp) of Potassium Hydrogen PhthalateFrazier W. Nyasulu, William Cusworth III, David Lindquist, and John Mackin In this general chemistry laboratory, flame emission spectrometry is used to determine the potassium ion concentration in saturated solutions of potassium hydrogen phthalate. From these data the solubility products, the Gibbs free energies of solution, the standard enthalpy of solution, and the standard entropy of solution are calculated. Nyasulu, Frazier W.; Cusworth, William, III; Lindquist, David; Mackin, John. J. Chem. Educ.2007, 84, 456.
Coal and Its By-Products Volume 03, issue 14 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Geochemistry |
Industrial Chemistry
Chemistry in Context, 6th Ed.Lucy Pryde Eubanks, Catherine H. Middlecamp, Carl E. Heltzel, Steven W. Keller Finds ChemEd DL resources related to the sections of the General Chemistry textbook, Chemistry in Context, 6th Ed., by Lucy Pryde Eubanks, Catherine H. Middlecamp, Carl E. Heltzel, Steven W. Keller published by McGraw-Hill, 2009.
General Chemistry, 9th EditionDarrell D. Ebbing, Steven D. Gammon Finds ChemEd DL resources related to the sections of the General Chemistry textbook, General Chemistry, 9th Edition, by Darrell D. Ebbing, Steven D. Gammon published by Houghton Mifflin Company, 2007.
Go for the oxidation of 2 mole of silver in the following balanced reaction. 
Ca(s) + 2AgI(s) 
