Atomic Spectroscopy Lab Report.docx - 3 Gilbert Dodson S...

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3 Gilbert Dodson S. Lipson (Chem-120) 5/01/18 Atomic Spectroscopy Lab Collaborator : Gilbert Abstract: The Rydberg’s Constant was calculated from the wavelengths of an excited hydrogen gas using a spectrometer, calibrated with four known wavelengths of excited mercury(Hg) gas, and the energy equation derived from the Bohr’s quantum model of a hydrogen atom and the Balmer’s equation. The experimental Rydberg’s Constant was found to be 2.19 × 10-18 J with a percent error of 0.387%. Purpose: To determine the Rydberg Constant Procedure: First, calibrate the spectroscope with the mercury lamp by counting squares for the wavelengths and record it. Second, we turned on Hydrogen lamp and focus our eyes on the entrance of the slit of the spectroscope on the emitted light and turn voltage up until you see 4 lines. After 4 lines were seen record the number of squares for each wavelength. Observation: This experiment produced 4 emission lines of color when looking in the view portion of the homemade spectroscope. If the emission lines were not visible, its important to twist the spectroscope that the

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