Optical Spectroscopy copy - ResultsandDiscussion:

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wavelength Intensity (counts) Handheld: Computer: Results and Discussion: The purpose of this lab was to observe various emission spectra and to use this information to determine the identity of an unknown salt solution. To observe these spectrums we used a handheld, portable spectrometer and also a more sophisticated, advanced spectrometer that displayed the emission spectra on the computer. Since the computer spectrometer was more sensitive, it was able to detect more wavelengths than the portable spectrometer could. Fluorescent Light Spectrum: Using both the handheld optical spectrometer and the computer spectrometer, the following data was collected for the emission spectra for a fluorescent light. Handheld: Computer: Wavelength (nm) Color Intensity (scale from 1 to ten) 615 Red 6 550 Green 8 440 Violet 4 Wavelength (nm) Intensity (counts) 610.63 456 587.17 257.3 543.56 377.9 487.63 242.5 435.12 311.2 404.25 230.9 Incandescent Light Spectrum: Using the computer spectrometer a continuous spectrum was observed. The peak of the graph was 612.38 nm. A continuous spectrum was also observed when the manual spectrometer was used, with wavelengths observed clearly at 610 nm (red) and 545 nm (green). The graph generated by the computer is as follows:
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This note was uploaded on 10/31/2008 for the course CHEM 2070 taught by Professor Chirik,p during the Fall '05 term at Cornell University (Engineering School).

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Optical Spectroscopy copy - ResultsandDiscussion:

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