| 56 Results |
| The Solubility Product (Other (1)) |
| A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook. |
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| Miscibility (Other (1)) |
| A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook. |
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| The Common-Ion Effect (Other (1)) |
| A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook. |
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| Precipitation Reactions (Other (1)) |
| A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook. |
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| Solutions (Movie/Animation, Audio/Visual (9)) |
| Reactions and demonstrations exploring the concepts of solutions. |
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| Reactions of Nitric Acid (Movie/Animation, Audio/Visual (7)) |
| These demonstrations illustrate the production of nitric acid and its reaction with various forms of calcium carbonate found in nature, namely marble, limestone, chalk, and eggshell. |
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| Reaction, Microscale: Potassium Dichromate with Silver Nitrate (Movie/Animation, Audio/Visual (7)) |
| A crystal of potassium dichromate is carefully combined with a solution of silver nitrate under a microscope. The reaction takes some time, so it is shown in a series of seven sequential videos. To see the entire reaction you need to play all seven. |
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| Reactions of Sulfurous Acid (Movie/Animation, Audio/Visual (5)) |
| These demonstrations illustrate the production and effects of sulfur dioxide, a pollutant generated by the burning of sulfur impurities in coal. The sulfurous acid produced by dissolving sulfur dioxide in water is allowed to react with various forms of calcium carbonate found in nature, namely marble, limestone, chalk, and eggshell. |
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| Extraction of Acid with Base (Movie/Animation, Audio/Visual (4)) |
| Water and diethyl ether are shaken in a separatory funnel with a small amount of red indophenol. The non-ionic indophenol remains in the ether layer, coloring it red. Addition of sodium hydroxide converts the indophenol to its blue ionic acid anion which is extracted into the water layer turning it blue. |
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| Crystallization of Supersaturated Sodium Acetate (Movie/Animation, Audio/Visual (3)) |
| A supersaturated solution of sodium acetate is poured onto one small sodium acetate crystal. Crystals form from the liquid immediately upon contact with the seed crystal. A thermometer shows that the crystallization process is exothermic. A chemical hot pack is shown as an example of a commercially available supersaturated solution. |
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| Precipitation Reactions (Movie/Animation, Audio/Visual (3)) |
| Two versions of the Orange Tornado, two reactions under a microscope, and updated stills of other precipitation reactions provide dramatic visual displays of solid formation. |
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| Reactions, Microscale: Precipitation (Movie/Animation, Audio/Visual (3)) |
| Here we show two precipitation reactions under a microscope. They are potassium dichromate crystal with silver nitrate and potassium iodide with lead nitrate. |
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| Precipitation Reactions (Movie/Animation, Audio/Visual (21)) |
| Approximately 2 mL of Solution A is added to a sample of Solution B with a dropping pipet. If a precipitate forms, the resulting precipitate is supended in the mixture. The mixture is then stirred with a glass stirring rod and the precipitate is allowed to settle for about a minute. |
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| Ammonia Fountains (Movie/Animation, Audio/Visual (2)) |
| An ammonia fountain is demonstrated. |
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| Ammonia Fountains - Multiple (Movie/Animation, Audio/Visual (2)) |
| System of multiple ammonia fountains are set up and run. A separatory funnel, four round-bottomed flasks, and some tubing form a closed system. One end of the tubing is immersed in an acetic acid solution that contains universal indicator. The glassware has been filled with ammonia gas. The stopcock of the funnel is closed. |
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| Like Dissolves Like - Multimedia Experiments (Movie/Animation, Audio/Visual (18)) |
| There are a total of six experiments you can view. You can view them in any order, as many times as you wish. Each experiment has three steps. |
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| Enthlapy-Thermodynamics (Movie/Animation, Audio/Visual (10)) |
| Reactions and demonstrations the explore thermodynamic concepts. |
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| Reactions : IDSampleRxnVideo (7 Variations) (Assessment Material (1)) |
| You have an unknown aqueous sample. You add aqueous copper(II) sulfate to the sample. View the video below and determine which of the compounds listed below could be your sample. |
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