| Topic | Chapter-Section | Name of Videodisc Demonstration | Description |
|---|---|---|---|
| Organic Chemistry - Functional Groups | 5a | Permanganate Oxidation of Cyclohexane, Cyclohexene, and Cyclohexanol | Alkaline KMnO4 reacts rapidly with the double bond of cyclohexene |
| The secondary alcohol of cyclohexanol is oxidized | |||
| The alkane, cyclohexane, is not oxidized | |||
| 5b | Chromic Acid Oxidation of Cyclohexane, Cyclohexene, and Cyclohexanol | Acidic dichromate oxidizes the secondary alcohol cyclohexanol, but does not react with alkanes or alkenes. | |
| 9b | Polarized Light and Organic Molecules | Demonstration of polarized filters and polarimeter | |
| When plane polarized white light is passed through a cylinder of aqueous sucrose, a spiral rainbow of color is observed. | |||
| Rainbow images of plastic objects under polarized light | |||
| Polarization of liquid crystal display of a calculator | |||
| 9d | Glyceraldehyde and the Fisher Projection | A model of glyceraldehyde and its nonsuperimposable mirror image is shown. | |
| The origin of the Fisher projection diagrams is illustrated. | |||
| 11a | Oxidation of Alcohols with Chromic Acid | redox reactions | |
| illustrates principle of breathalyzer | |||
| oxidation states of chromium | |||
| 11b | Oxidation of Glycerine with Solid Potassium Permanganate | demonstrates effect of particle size on rate of reaction | |
| redox reaction | |||
| exothermic reaction | |||
| 12b | 2,4- Dinitrophenylhydrazine Test for Carbonyl Compounds | A solution of 2,4-Dinitrophenylhydrazine is added to 2-propanol, acetone, and propionic acid. A yellow precipitate forms with acetone, a ketone. | |
| Classical test for aldehydes and ketones. | |||
| 12c | Iodoform test for Methyl Ketones | Methyl ketones react with basic iodine to produce the solid iodoform. | |
| Use to illustrate the formation of trihalomethanes during the chlorination of public water supplies containing organic compounds such as humic acids. | |||
| 12d | Silver Mirror - Tollens' Test for Aldehydes | redox reaction | |
| preparation of silver mirror | |||
| equation | |||
| 13a | Ferric Chloride Test for Phenols | Aqueous ferric chloride produces a purple complex with phenols including salicylic acid but not with derivatives such as acetyl salicylic acid (aspirin). | |
| Classical test for phenols | |||
| 14a | pH of Aqueous Ammonia, Cyclohexylamine, and Aniline | pH of 0.1 M aqueous ammonia, cyclohexylamine, and aniline is determined with a pH meter. Aniline is less basic than the other compounds. | |
| 15a | Conductivity of Carboxylic Acid | Conductivity of water, glacial acetic acid, and dilute acetic acid compared. | |
| Role of water in ionization of electrolytes | |||
| Neutralization of weak electrolytes acetic acid and aqueous ammonia produces a salt which is a strong electrolyte | |||
| Electrolyte strength of 0.1 M HCl and 0.1 M acetic acid compared. | |||
| 15c | Hydrophobic Effect | Two Petri dishes with water are dusted with lycopodium powder. A drop of nonpolar mineral oil leaves the powder undisturbed. A drop of polar oleic acid pushes the powder to the sides of dishes as the acid spreads across the surface. | |
| A drop of oleic acid on water breaks up when treated with NaOH. | |||
| Polar and nonpolar liquids |
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