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Unformatted text preview: Abstract: First was the flame emission test done by TAs. A wire loop was dipped into a solution and placed in a flame. The flame would emit a different color for the solutions placed in it. The second part of the experiment was luminescence. Chemicals were obtained from a glow stick and placed in a cuvette. The wavelength of the color (in nm) was determined using a machine. The last part of the experiment was absorbance spectroscopy. Using food coloring, a machine measured the colors being absorbed in the solution. Background: Spectroscopy is seen everywhere. First of all, the colors seen in everyday vision are seen because of absorbance of all other colors in the visible light spectrum, except for the visible color that is being reflected. In neon signs, there is different gases sealed in glass tubes, so when an electric current passes through the tube, the gas emits a colored light. This is because the electrons react with the electricity, forcing them into an excited state, making them emit a color. Each type of gas glows a different color, so forcing them into an excited state, making them emit a color....
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This note was uploaded on 04/12/2010 for the course CHEM 57521 taught by Professor Hirko during the Spring '10 term at SD State.
- Spring '10