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Evaluated Electronic
Resources for Pitt Chemistry Instruction
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Evaluated Electronic
Resources for Pitt Chemistry Instruction
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| Metal Ions in Solution (e.g., Chapters 18 & 23 of Ebbing, 7th ed. and Experiment 12 in Chem 120 Lab Manual) |
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Learning Objective |
Develop skills of observation while learning the chemistry of Cu, Ag, Co, Fe, Cr, and V in solution, based on reactions with simple reagents. |
| Learning Activity |
Metal Ions in Solution The user can choose to see 41 experiments being performed (Quicktime required). A "virtual benchtop" is shown with reagent bottles to choose from. On the right, equations are written and questions are posed about color changes, precipitates and the chemistry that is occurring. 20-25 minutes are required to complete the series of reactions for each metal. [5/04] |
| Determining Formulas Instrumental Methods: Mass Spectrometry and Molecular Formula (e.g., Chapter 35 of Ebbing, 7th ed.) |
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Learning Objective |
Gain understanding of how molecular masses and structures are determined from MS data. |
| Learning Activity |
http://chemed.chem.pitt.edu/VMSL/caffeine/Caffeine.htm The instructor can use the Caffeine Case Study to demonstrate the GC/MS interface to gain an EI fragmentation spectrum of caffeine. Progeny ions may then be compared to the spectrally-determined masses to yield structural information. The case study includes a web page about fragmentation |
| Learning Assessment | Sample quizzes for gauging learning gains are available. |
| Determining Formulas Instrumental Methods: Mass Spectrometry and Molecular Formula (e.g., Chapter 35 of Ebbing, 7th ed.) |
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Learning Objective |
Determining identities of unknown substances by EI fragmentation ‘fingerprint’ identification. |
| Learning Activity |
http://chemed.chem.pitt.edu/VMSL/genanes/genanes.html The student will determine the identification of an unknown substance in the GC/MS General Anesthetics Case Study. Time to completion is 1-2 hours, and student and teacher manuals are available. |
| Learning Assessment |
May be performed either by quiz (sample quizzes available to instructors) or submitted lab report. This case study contains an answer-evaluation form where the student submits the identity of the unknown (randomly assigned to the student); the form then displays whether the answer was correct or not while emailing the result to the instructor’s email address. |
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This page last updated: 05/04/2004 |