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Professor Cash, March 2007 |
Scroll below to read descriptions of these Nine Chemistry Experiments which were created for Mohawk College laboratory courses in General Chemistry, Analytical Chemistry, and Organic Chemistry. Each experiment may be downloaded in the form of a linked pdf file.
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The Spectronic 20 and Allura Red Solutions |
Title: Spectrometry: Absorbance of Visible Light by a Food Colour Dye Content: Introduction to Spectroscopy; Introduction to the Spectronic 20; The Food Dye Allura Red (Red # 40); The Calibration Curve Method; Introduction to Plotting; Dilution; Analysis of Red # 40 in Cherry Kool Aid and Cherry Cough Drops File Details: Spectroscopy1.pdf (326 kB)
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A Paper Chromatogram |
Title: Paper Chromatography of Food Colour Dyes Content: Introduction to Chromatography; Paper Chromatography of Food Dyes; Rf Calculations File Details: PaperChromatography.pdf (96 kB) Download |
The Development of a Chromatogram |
Title: Thin Layer Chromatography of Food Colour Dyes Content: Introduction to Thin Layer Chromatography (TLC); Practical TLC; TLC of Food Dyes; Rf Calculations File Details: |
Dyed Multifiber Ribbons |
Title: Synthesis and Use of Fabric Dyes Synthesis of Orange II; Synthesis of Indigo; The Multifiber Ribbon; Dyeing with Orange II, Indigo, and Kool AidFile Details: DyesandDyeing.pdf (118 kB) Download |
The Synthesis of Sodium Polyacrylate |
Title: Polymer Exercises Content: Synthesis of a Linear Polyester; An Epoxy Resin; A Cross-Linked Polyvinyl Acetate; A Superabsorbant Polyacrylic Acid; The WonderVase (Glass Transition Temperature); Superhigh Molecular Weight Polyethylene Oxide File Details: Polymers.pdf (103 kB) Download |
The Complex of Ferric Ion and Salicylate Ion |
Title: Spectrophotometry: Analysis of the ASA content of a Tablet by Use of the Beer-Lambert Law Content: Complex Ions; Spectrometry; Calibration Curve Method; Plotting; Use of the Spectronic 20; Analysis of ASA in a Tablet File Details: Spectroscopy2.pdf (365 kB) Download |
A Digital pH Meter |
Title: The pH Meter: Calibration of a pH Meter and Titration Curve Applications Content: Calibration and Use of a Digital pH Meter; Introduction to Gravimetric Titration; Plotting Titration Curves of pH versus Mass of Titrant; Using Titration Curves File Details: pHMeter.pdf (783 kB) Download |
Dissolving Pure Zinc Metal |
Title: Complexometric Titration (1): Standardization of an EDTA Solution with Zinc Ion Solution and Analysis of Zinc Supplement Tablets Content: Titration Analysis; EDTA Titrations; Standardization of an EDTA Solution with a Standard Zinc Solution; Analysis of a Zinc Supplement Tablet File Details: EDTA1.pdf (164 kB)
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Reading a Buret Level |
9. EDTA 2 Title: Complexometric Titration (2): Use of an EDTA Solution to Analyse for Calcium and Magnesium and to Determine the Total Hardness of Tap Water Content: Titration Analysis; EDTA Titrations; Determination of the Magnesium in Epsom Salt; Analysis of a Calcium Citrate Supplement Tablet; EDTA Determination of the Hardness of Tap Water File Details: EDTA2.pdf (199 kB) Download |