Paper Chromatography

The atomic number 1 component Spectrum Evan J. Collins C. N. Peck June 16, 2009 INTRODUCTION MATERIALS _Emission Spectra an the Electronic Structure of Atoms_ Spectroscope sinister Ink Pen Graphite Pencil Notebook Mercury Spectrum Hydrogen Spectrum PROCEDURE Calibration of the Spectroscope Using the spectroscope the four to the highest degree visible lines on the scale were measured. Violet, blue, green, and yellow were all visible. With the ink playpen the measurements were recorded. A known wavelength (nm) vs. measured lines (cm) graphical record was thus drawn from the measurements. remark and Measurements of the Hydrogen Spectrum Using the calibrated spectroscope the scale position of the manifest lines of the hydrogen emission spectrum were measured. Red, turquoise, violet, and purple were all visible. Using the measurements and the calibration graph the wavelength of the lines were determined. The relative error was calculated using Accepted Value determine of wavelengt h for the hydrogen atom spectrum were converted to kJ/mol. Using a form of the rydberg unit equation, the Rydberg constant was calculated for each of the lines measured.This constant was used to then calculate percentage error. Data Calibration of the Spectroscope Observations and Measurements of the Hydrogen Spectrum CALCULATIONS (Convert wavelength set to corresponding energy in kJ/mol) 680 x 10-9 2. 92 x 10-19 J x (6. 022 x 1023) / (1000 J) = 176 kJ/mol (Calculate the rank of the Rydberg constant) (1/680)/(. 25-. 30) = . 00147059/(. 25000-. 11111)= 0. 0105042 x 10-7 = Rh= 105,040 cm -1 (Calculate Percentage Error) 105040 109678 X 100 = 4. 23% Error 109678 DISCUSSION/CONCLUSION