Chem 1BL - E14 - Discussion

Chem 1BL - E14 - Discussion - Bert Mouler TA: Brendan Beahm...

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Bert Mouler TA: Brendan Beahm Chemistry 1BL – Experiment 14 – Discussion In this lab, usage of a spectroscope was employed to observe and analyze the different light emissions by different element sources, such as mercury, hydrogen, and some metal ions. In this experiment, atomic structure was introduced through the nature of line spectra. In part 1, the basic spectroscope was calibrated by observing the light position of the violet, blue, green, and yellow from the overhead light. The readings recorded for the calibration were 4.3, 4.9, 5.5, and 5.9, for violet, blue, green, and yellow, respectively. In part 2, the emission spectra of a hydrogen lamp was observed and analyzed. The scale readings for violet, blue, green, and yellow were 4.3, 4.8, 5.5, and 6.7. After creating a calibration graph, the estimated wavelengths were 404.7 nm, 435.8 nm, 546.1 nm, and 691.8 nm, respectively. The percent error was calculated against the accepted wavelength values and turned out to be 1.29%, .41%, 12.37%, and 5.46%, for violet, blue, green, and yellow,
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This note was uploaded on 03/15/2009 for the course CHEM 1B taught by Professor Watts during the Spring '08 term at UCSB.

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