| Journal Articles: 16 results |
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Modifying and Validating the Colorado Learning Attitudes about Science Survey for Use in Chemistry Jack Barbera, Wendy K. Adams, Carl E. Wieman, and Katherine K. Perkins
The chemistry version of the Colorado Learning Attitudes about Science Survey (CLASS-Chem) is a new instrument designed to measure the effects of students' beliefs on learning and to understand how educational practices influence these beliefs in order to guide chemistry instruction.
Barbera, Jack; Adams, Wendy K.; Wieman, Carl E.; Perkins, Katherine K. J. Chem. Educ. 2008, 85, 1435.
Minorities in Chemistry |
Quantitative Analysis |
Women in Chemistry |
Student-Centered Learning
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Manual Data Processing in Analytical Chemistry: Linear Calibration Dora Melucci
Most science students are familiar with Excel spreadsheets, but determining which of Excels statistical functions perform a calculation equivalent to a classical equation and calculating errors with Excel are not trivial exercises.
Melucci, Dora. J. Chem. Educ. 2008, 85, 1346.
Calibration |
Chemometrics |
Quantitative Analysis
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The Empirical Formula of Silver Sulfide Carlos Alexander Trujillo
An experiment is described that allows students to experimentally determine an empirical formula for silver sulfide. At elevated temperatures, silver sulfide reacts in air to form silver, silver sulfate, and sulfur dioxide. At higher temperatures (~960C) silver sulfate decomposes to produce metallic silver.
Trujillo, Carlos Alexander. J. Chem. Educ. 2007, 84, 1682.
Gravimetric Analysis |
Quantitative Analysis |
Thermal Analysis
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A Method of Visual Interactive Regression Michelle S. Kim, Maureen Burkart, and Myung-Hoon Kim
The process behind the least-squares method, minimizing the sum of the deviations squared, is made visible, interactive, and dynamic by allowing the user to adjust heights in a bar graph.
Kim, Michelle S.; Burkart, Maureen; Kim, Myung-Hoon. J. Chem. Educ. 2006, 83, 1884.
Kinetics |
Laboratory Computing / Interfacing |
Quantitative Analysis |
Spectroscopy |
UV-Vis Spectroscopy |
Student-Centered Learning
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The Decomposition of Zinc Carbonate: Using Stoichiometry To Choose between Chemical Formulas Stephen DeMeo
To determine which formula corresponds to a bottle labeled "zinc carbonate", students perform qualitative tests on three of zinc carbonate's decomposition products: zinc oxide, carbon dioxide, and water. Next students make quantitative measurements to find molar ratios and compare them with the coefficients of the balanced chemical equations. This allows the correct formula of zinc carbonate to be deduced.
DeMeo, Stephen. J. Chem. Educ. 2004, 81, 119.
Gases |
Stoichiometry |
Quantitative Analysis
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The Analysis of Seawater: A Laboratory-Centered Learning Project in General Chemistry Jodye I. Selco, Julian L. Roberts, Jr., and Daniel B. Wacks
Experiment designed to introduce students to qualitative and quantitative analysis methods (gravimetric analysis, potentiometric titration, ion-selective electrodes, and atomic absorption and atomic emission spectroscopy) in the context of an overall analysis of an environmental sample.
Selco, Jodye I.; Roberts, Julian L., Jr.; Wacks, Daniel B. J. Chem. Educ. 2003, 80, 54.
Aqueous Solution Chemistry |
Instrumental Methods |
Qualitative Analysis |
Quantitative Analysis |
Water / Water Chemistry |
Gravimetric Analysis |
Titration / Volumetric Analysis |
Ion Selective Electrodes |
Atomic Spectroscopy |
Potentiometry
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Alka-Seltzer Fizzing—Determination of Percent by Mass of NaHCO3 in Alka-Seltzer Tablets. An Undergraduate General Chemistry Experiment Yueh-Huey Chen and Jing-Fun Yaung
Lab activity that introduces the concept of a limiting reactant by incrementally increasing the amount of vinegar added to an Alka Seltzer tablet.
Chen, Yueh-Huey; Yaung, Jing-Fun. J. Chem. Educ. 2002, 79, 848.
Acids / Bases |
Quantitative Analysis |
Stoichiometry
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The Chemical Adventures of Sherlock Holmes: The Shroud of Spartacus Thomas G. Waddell and Thomas R. Rybolt
A chemical mystery featuring Sherlock Holmes and Dr. Watson.
Waddell, Thomas G.; Rybolt, Thomas R. J. Chem. Educ. 2001, 78, 470.
Enrichment / Review Materials |
Forensic Chemistry |
Proteins / Peptides |
Quantitative Analysis
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Preparation and Analysis of Multiple Hydrates of Simple Salts Richard W. Schaeffer, Benny Chan, Shireen R. Marshall, Brian Blasiole, Neetha Khan, Kendra L. Yoder, Melissa E. Trainer, and Claude H. Yoder
A laboratory project in which students prepare a series of hydrates of simple salts and then determine the extent of hydration of the product(s); provides a good introduction to the concepts of solubility, saturation, recrystallization, relative compound stability, and simple gravimetric analysis.
Schaeffer, Richard W.; Chan, Benny; Marshall, Shireen R.; Blasiole, Brian; Khan, Neetha; Yoder, Kendra L.; Trainer, Melissa E.; Yoder, Claude H. J. Chem. Educ. 2000, 77, 509.
Stoichiometry |
Qualitative Analysis |
Crystals / Crystallography |
Precipitation / Solubility |
Gravimetric Analysis |
Quantitative Analysis
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Formation and Dimerization of NO2 A General Chemistry Experiment April D. Hennis, C. Scott Highberger, and Serge Schreiner*
A general chemistry experiment which illustrates Gay-Lussac's law of combining volumes. Students are able to determine the partial pressures and equilibrium constant for the formation and dimerization of NO2. The experiment readily provides students with data that can be manipulated with a common spreadsheet.
Hennis, April D.; Highberger, C. Scott; Schreiner, Serge. J. Chem. Educ. 1997, 74, 1340.
Gases |
Equilibrium |
Quantitative Analysis |
Stoichiometry
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Inventory Control: Sampling and Analyzing Air Pollution: An Apparatus Suitable for Use in Schools Rockwell, Dean M.; Hansen, Tony
Two variations of an air sampler and analyzer that are inexpensive, easy to construct, and highly accurate.
Rockwell, Dean M.; Hansen, Tony J. Chem. Educ. 1994, 71, 318.
Atmospheric Chemistry |
Laboratory Equipment / Apparatus |
Quantitative Analysis
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A BASIC program for computing reactant combinations from approximate elemental analysis data Senthilkumar, Udayampalayam P.; Vijayalakshmi, Rajagopalan; Jeyaraman, Ramasubbu
129. A computer program has been developed for determining the number of moles of reactants participating in a reaction in addition to calculating the molecular formula for the analytical data.
Senthilkumar, Udayampalayam P.; Vijayalakshmi, Rajagopalan; Jeyaraman, Ramasubbu J. Chem. Educ. 1991, 68, 773.
Laboratory Computing / Interfacing |
Stoichiometry |
Quantitative Analysis
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Quantitative analysis in revision Bramstedt, W. R.; Korfmacher, W. A.; Layloff, T.
Describes the laboratory and lecture components of a chemistry course that conveys the the necessity of understanding chemical principles but also emphasizes that learning chemistry can be fun and useful.
Bramstedt, W. R.; Korfmacher, W. A.; Layloff, T. J. Chem. Educ. 1973, 50, 252.
Quantitative Analysis
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Acid-base titration and distribution curves Waser, Jurg
Presents an alternative method for the calculation of acid-base titration curves.
Waser, Jurg J. Chem. Educ. 1967, 44, 274.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis |
Aqueous Solution Chemistry
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Condensed norms: ACS cooperative examinations
Provides norms for the 1966 ACS high school, inorganic, instrumental analysis, and quantitative analysis chemistry tests.
J. Chem. Educ. 1967, 44, 243.
Instrumental Methods |
Quantitative Analysis
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Teaching analytical chemistry Lykken, Louis
Offers suggestions regarding curriculum and instruction in analytical chemistry, from first-year preparation through senior-level coursework.
Lykken, Louis J. Chem. Educ. 1951, 28, 440.
Quantitative Analysis
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