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Journal Articles: 26 results
Construction of a Polyaniline Nanofiber Gas Sensor  Shabnam 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
Reproportionation of Copper(I)  Jan Malyszko and Maria Kaczor
Cu(I) is an example of an intermediate oxidation state that can undergo disproportionation or reproportionation reactions depending on the solvent and background electrolyte. A simple experiment to demonstrate the reproportionation of copper(I) from the reaction between copper metal and copper(II) in acidic aqueous solution containing an excess of chlorides is presented.
Malyszko, Jan; Kaczor, Maria. J. Chem. Educ. 2003, 80, 1048.
Electrochemistry |
Oxidation / Reduction |
Oxidation State
A New Approach to Understanding Oxidation-Reduction of Compounds in Organic Chemistry  Abdullah Menzek
Teaching oxidation-reduction in introductory organic chemistry.
Menzek, Abdullah. J. Chem. Educ. 2002, 79, 700.
Aromatic Compounds |
Oxidation / Reduction |
Oxidation State
Redox Redux: Recommendations for Improving Textbook and IUPAC Definitions  Ed Vitz
Defining oxidation / reduction reactions as those in which oxidation states of the reactant(s) change.
Vitz, Ed. J. Chem. Educ. 2002, 79, 397.
Electrochemistry |
Mechanisms of Reactions |
Oxidation / Reduction |
Oxidation State
Oxidation Numbers  Gion Calzaferri
Assigning oxidation numbers to organic compounds and J¬Ěrgensen's axioms.
Calzaferri, Gion. J. Chem. Educ. 1999, 76, 362.
Oxidation / Reduction |
Stoichiometry |
Molecular Properties / Structure |
Oxidation State
Vanadium Ions as Visible Electron Carriers in a Redox System  Bare, William D.; Resto, Wilfredo
Demonstration using a column to display the four, differently colored, oxidation states of vanadium simultaneously.
Bare, William D.; Resto, Wilfredo J. Chem. Educ. 1994, 71, 692.
Oxidation / Reduction |
Transition Elements |
Metals |
Oxidation State
Classroom Demonstration of Chromium(VI)/Chromium(III) in the Breathalyzer Test Reaction  Jones, Rebecca B.; Dreisbach, Joseph H.
Demonstrating the breathalyzer reaction.
Jones, Rebecca B.; Dreisbach, Joseph H. J. Chem. Educ. 1994, 71, 158.
Nonmajor Courses |
Oxidation State |
Oxidation / Reduction
Frost diagrams: A tool for predicting redox reactions.  Birk, James P.; Hocker, Heidi.
A HyperCard stack that provides an easily used format for making redox reaction predictions for one or two elements by comparing slopes of the lines connecting two oxidation states.
Birk, James P.; Hocker, Heidi. J. Chem. Educ. 1992, 69, 509.
Oxidation / Reduction |
Oxidation State
Redox demonstrations and descriptive chemistry: Part 3. Copper (I)-copper(II) equilibria   Ophardt, Charles E.
The unusual redox properties of copper (I) and copper (II) ions explained and illustrated.
Ophardt, Charles E. J. Chem. Educ. 1991, 68, 248.
Descriptive Chemistry |
Oxidation State |
Oxidation / Reduction
Oxidation numbers and their limitations  Woolf, A. A.
An in-depth look at oxidation numbers of various elements in a number of different compounds.
Woolf, A. A. J. Chem. Educ. 1988, 65, 45.
Organometallics |
Oxidation State |
Oxidation / Reduction
Preparation of lead compounds: An exercise in applied chemistry  Laing, Michael; Williams-Wynn, David; Suhramoney, Saroj
Uses and synthesis of Pb(NO3)2, PbO2, PbCrO4, PbS, PbO, lead carbonate, lead acetate, and lead metal itself.
Laing, Michael; Williams-Wynn, David; Suhramoney, Saroj J. Chem. Educ. 1987, 64, 811.
Synthesis |
Metals |
Oxidation / Reduction |
Oxidation State |
Reactions |
Descriptive Chemistry
Redox demonstrations and descriptive chemistry: Part 2. Halogens  Ophardt, Charles E.
Oxidation states of bromine and iodine.
Ophardt, Charles E. J. Chem. Educ. 1987, 64, 807.
Oxidation / Reduction |
Descriptive Chemistry |
Oxidation State
The stepwise reduction of permanganate in alkaline conditions: A lecture demonstration  Ruoff, Peter
Demonstrates the +VII, +VI, +V, and +IV oxidation states of manganese and their characteristic colors.
Ruoff, Peter J. Chem. Educ. 1987, 64, 624.
Oxidation / Reduction |
Oxidation State
Estimating the one electron reduction potential for vanadium (V) by chemical techniques: An experiment for general chemistry  Wentworth, R. A. D.
Procedure requires no electrochemical equipment because the method depends solely upon observations of the spontaneity of the reactions of V(V) with a series of potential reducing agents and V(IV) with a series of potential oxidizing agents.
Wentworth, R. A. D. J. Chem. Educ. 1985, 62, 440.
Oxidation State |
Oxidation / Reduction |
Electrochemistry
Methemoglobinemia: An illness caused by the ferric state  Senozan, N. M.
Hemoglobin's ability to carry oxygen depends on the iron being in the +2 state; methemoglobinemia involves the oxidation of hemoglobin iron to the +3 state.
Senozan, N. M. J. Chem. Educ. 1985, 62, 181.
Proteins / Peptides |
Enzymes |
Medicinal Chemistry |
Oxidation / Reduction |
Oxidation State
The Fe(II)-Cr(VI) reaction without using mercury  Klett, Lee D.; Black, Arthur H.; Parker, Gordon A.
Procedure that employs titanium rather than mercury in the oxidation-reduction titration of iron(II) with chromium(VI).
Klett, Lee D.; Black, Arthur H.; Parker, Gordon A. J. Chem. Educ. 1984, 61, 1020.
Reactions |
Oxidation State |
Oxidation / Reduction |
Metals
Oxidation by Mn207: An impressive demonstration of the powerful oxidizing property of dimanganeseheptoxide  Koch, Klaus R.
Demonstrates the formation of Mn2O7 and its powerful oxidation of simple alcohols.
Koch, Klaus R. J. Chem. Educ. 1982, 59, 973.
Oxidation / Reduction |
Oxidation State
Ion exchange separation of the oxidation states of vanadium  Cornelius, Richard
An experiment designed to emphasize the discrete nature of the different oxidation states of vanadium by giving students an opportunity to separate the four species by ion exchange chromatography.
Cornelius, Richard J. Chem. Educ. 1980, 57, 316.
Ion Exchange |
Separation Science |
Oxidation State |
Transition Elements |
Metals |
Oxidation / Reduction
The precipitation of ferrous hydroxide: A lecture demonstration  Lau, O. W.
This demonstration can illustrate such topics as the solubility of ionic compounds, electrode potentials of transition elements and their modification by formation of either an insoluble compound of a complex ion, and mixed valence compounds.
Lau, O. W. J. Chem. Educ. 1979, 56, 474.
Precipitation / Solubility |
Solutions / Solvents |
Aqueous Solution Chemistry |
Transition Elements |
Metals |
Oxidation / Reduction |
Oxidation State
A demonstration in solid state chemistry: The nonstoichiometry of nickel oxide, NiO  Perrino, Charles T.; Johnson, Robert
A simple experiment to demonstrate the nonstoichiometric synthesis of nickel oxide.
Perrino, Charles T.; Johnson, Robert J. Chem. Educ. 1977, 54, 367.
Stoichiometry |
Oxidation State |
Oxidation / Reduction |
Solid State Chemistry |
Metals
Lecture demonstration of the various oxidation states of manganese  Arora, C. L.
Showing the colors associated with seven different oxidation states of magnesium and methods for preparing each.
Arora, C. L. J. Chem. Educ. 1977, 54, 302.
Oxidation / Reduction |
Oxidation State |
Transition Elements |
Metals
Mechanisms of oxidation-reduction reactions  Taube, Henry
Examines the mechanisms of oxidation-reduction reactions.
Taube, Henry J. Chem. Educ. 1968, 45, 452.
Mechanisms of Reactions |
Oxidation / Reduction |
Reactions |
Oxidation State |
Coordination Compounds
Material balances and redox equations  Bennett, George W.
It is the purpose of this paper to remind teachers of a third method of balancing redox equations that does not depend on rule-of-thumb empiricism but relies on the conservation of matter.
Bennett, George W. J. Chem. Educ. 1954, 31, 324.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
Letters  Swinehart, D. F.
The author responds to questions raised regarding his earlier article on oxidation states.
Swinehart, D. F. J. Chem. Educ. 1953, 30, 265.
Oxidation / Reduction |
Oxidation State
Letters  Miranda, Bienvenido T.
Commmentary on two earlier Journal articles.
Miranda, Bienvenido T. J. Chem. Educ. 1953, 30, 264.
Oxidation State |
Oxidation / Reduction |
Reactions
Redox diagrams  Sillen, Lars Gunnar
Develops redox diagrams that portray redox equilibria for a variety of species.
Sillen, Lars Gunnar J. Chem. Educ. 1952, 29, 600.
Oxidation / Reduction |
Oxidation State |
Metals