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Information, Textbooks, Media, Resources
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JCE Software
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General Chemistry Multimedia Problems
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David M. Whisnant
Department of Chemistry, Wofford College, Spartanburg, SC 29303
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October 2000
Vol. 77 No. 10
p. 1375
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| Full Text |
General Chemistry Multimedia Problems ask students questions about experiments they see. A computer presents high-quality videos of experiments, after which students respond to a question or request additional video to expand their experimental information. Video used is from JCE Software's Chemistry Comes Alive! series (1). The questions ask students to apply concepts from several different parts of an introductory course, encouraging students to decompartmentalize the material. General Chemistry Multimedia Problems are available on a CD-ROM for Mac OS and Windows in HTML format and can be viewed with a Web browser.
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| Screen from the multimedia problem, The Drinking Bird. |
General Chemistry Multimedia Problems can be used in a variety of ways. They are designed to supplement traditional textbook problems and can be assigned as homework. They can be used as the basis for out-of-class collaborative group work or for written essays in which individual students answer the questions in detail. If classroom computer projectors are available, they can be used for in-class collaborative work or as questions on examinations. Answers to the problems are provided but are not directly available from within the problems.
There are 32 General Chemistry Multimedia Problems. Each consists of four to twelve questions that have been chosen to include many of the concepts covered in a typical two-semester general chemistry course for science majors. Nineteen of the problems are based on concepts often encountered in the first semester of this course; thirteen of the problems are based on both first and second semester topics.
Contents
Problem titles are listed in Table 1 along with a list of the concepts needed to answer the questions and the semester in which most of the concepts needed for the question are covered in a typical introductory college course.
Table 1. Problems and Concepts Covered in General Chemistry Multimedia Problems
| 1st Semester Problem Titles |
Concepts |
| Acids and Salts |
strong and weak acids, oxidizing agents, H2SO4 dehydration, heat of reaction, preparation of solutions by dilution, laboratory glassware, industrial uses of acids, colors of salts, naming ionic compounds |
| Burning Magnesium |
ionic and covalent compounds, chemical formulas, empirical formulas from experiment, periodic table, balancing simple reactions, naming covalent compounds, strong acids |
| Drinking Bird |
liquid-vapor equilibrium, vapor pressure and temperature, heat of reaction, evaporation |
| Electrostatic Attraction |
Lewis structures, molecular geometry, polarity, hydrocarbons, functional groups |
| Electrolysis #1 |
electrolysis, reactions of hydrogen and oxygen, boiling, intermolecular forces, covalent bonding |
| Fireworks |
electron configuration, quantum numbers, absorption and emission, photon energy and wavelength, flame tests, H atom energies, visible and UV light |
| Floating Squares (2) |
polarity and solubility, density, cellulose, graphite, intermolecular forces, diamond, fullerenes, hybridization, allotropes |
| Hexane #1 |
combustion reactions, balancing, limiting reactant, gas laws, condensation, ideal gas law, density |
| Hexane #2 |
those from Hexane #1 plus polarity and solubility, intermolecular forces |
| NO and O2 #1 |
solubility of gases, gas laws, balancing, limiting reactant |
| NO and O2 #2 |
those from NO and O2 #1 plus ideal gas law and chemical reactions |
| NO and O2 #3 |
those from NO and O2 #2 plus oxidation-reduction, acids and bases, free radicals, photochemical smog |
| Paramagnetism |
paramagnetism and diamagnetism, oxidation number, electron configuration |
| Phlogiston |
chemical revolution, combustion, balancing, limiting reactant, gas laws, condensation, empirical formula from experimental data, formulas of ionic compounds, chemical equations, mass relationships |
| Reactions of Metals #1 |
heat of reaction, oxidation-reduction, reactivity, formulas and names of ionic compounds, hydrates, periodic table, halogens, metals and nonmetals, ionic and covalent compounds |
| Steam |
boiling point, liquid-vapor equilibrium, kinetic theory, balancing, types of reactions, electric power plants |
| Two Balloons |
gas laws, liquid-vapor equilibrium, vapor pressure, boiling |
| Water #1 |
isotopes, protons, neutrons, density, atomic size |
| Water #2 |
those from Water #1 plus Lewis structures, molecular geometry, intermolecular forces |
| 2nd Semester Problem Titles |
Concepts |
| Acids |
electrolytes, pH, strong and weak acids, buffers, acid-base equilibrium, kinetics, rate laws |
| Ammonia Fountain |
solubility of gases, acids and bases, indicators, pH |
| The H2 and Cl2 Cannon |
ideal gas law, light-initiated reactions, thermodynamics (H, G), reaction mechanisms, ozone, absorption of light, stratospheric ozone, CFCs in the stratosphere |
| Chromate/Dichromate Equilibrium |
colors of salts, Le Châtelier's principle, acid-base reactions, equilibrium constants |
| Disorder |
entropy and disorder, spontaneity, DG, DH, and DS. |
| Electrolysis #2 |
electrolysis, reactions of hydrogen and oxygen, boiling, thermodynamics, DG, DH, and DS |
| Electrolysis #3 |
electrolysis, reactions of hydrogen and oxygen, anode and cathode, pH, half-reactions, standard reduction potentials |
| Halogens and Halides |
polarity and solubility, balancing, standard reduction potentials, periodic table trends |
| Reactions of Metals #2 |
balancing, heat of reaction, oxidation-reduction, reactivity, formulas and names of ionic compounds, hydrates, standard electrode potentials, periodic table trends |
| Nitrogen Oxides |
Le Châtelier's principle, heat of reaction, diamagnetism and paramagnetism, kinetic theory, equilibrium constant |
| Oxides |
acidic and basic oxides, pH, periodic table, acid deposition |
| Strong Acids (2) |
strong and weak acids, oxidizing agents, H2SO4 dehydration, heat of reaction, freezing point depression, entropy, industrial uses of acids |
| Two Solids |
heat of reaction, pH, ammonia as a basic gas, products of a reaction, balancing, spontaneity and DG, DG = DH - TDS, entropy and disorder |
Hardware and Software Requirements for General Chemistry Multimedia Problems
- Windows compatible
- CPU: Pentium; >=150 MHz recommended
- System Software: Windows 98/95
- Mac OS compatible
- CPU: PowerPC; >=150 MHz recommended
- System Software: System 7.6.1 or higher
- RAM: >=24 MB
- Drives: >=4 x CD-ROM; Hard disk
- Graphics: >=800 x 600; 16-bit (thousands) or 24-bit (millions) of colors
- Other Software (Included): QuickTime 4 or higher
- WWW Browser (Not Included): Netscape Navigator 4 or higher OR Microsoft Internet Explorer 4 or higher
Acknowledgments
The author thanks John Moore and the New Traditions Curriculum Project for support during two summers at the University of Wisconsin-Madison where the original versions of these problems were developed and Charles Kay for his explanation of the Phlogiston theory. The Disorder problem was inspired by a film made by Henry A. Bent.
Literature Cited
- Moore, J. W.; Jacobsen, J. J. Chemistry Comes Alive!, J. Chem. Educ. Software 2000, SP 18 2nd ed., SP 21 2nd ed., SP 23; SP 25; and additional video in press.
- Summerlin, L. R.; Borgford, C. F.; Ealy, J. B. Chemical Demonstrations, Volume 2; ACS: Washington, DC, 1987.
| Information about the CCA! Video Collection |
| General Chemistry Multimedia Problems uses video and still images from JCE Software's Chemistry Comes Alive! (CCA!) collection. CCA! is a series of CD-ROMs that contain a wide range of imagery suitable for use in multimedia presentations, lessons, and HTML documents. We encourage you to use CCA! as a source for high quality imagery for your own presentations. Remember to obtain a license before you distribute images or video from CCA! on a network or the World Wide Web. |
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| More Information |
 Citation |
Whisnant, David M. J. Chem. Educ. 2000 77 1375.
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Keywords |
Demonstrations; General Chemistry; Internet; Multimedia; Problem-Based Learning
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History |
Created:
Last Updated: |
September 22, 2000
April 15, 2005
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