Mitchell Graded Exp 6

Mitchell Graded Exp 6 - Experiment 6 Spectroscopy Spring...

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Experiment 6 – Spectroscopy Spring 2008 Name Lab Day and Time TA Section Documentation Possible Points Points Received Introduction 10 5 Purpose of report Goals of the experiment Materials and Methods 20 20 Reference lab manual Described procedure for building spectroscope Described deviations from the procedure Results and Discussion 35 20 Inserted titles for tables Inserted graphs into template Inserted captions for each graph Showed complete sample calculations Summarized all data in tables Answered questions completely Error analysis Homework Questions 15 15 Laboratory Technique 20 20 TOTAL (100) 80 TA Comments/Suggestions:
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C HEMISTRY 11L R EPORT T EMPLATE EXPT. Spectroscopy 6 Introduction The purpose of this report is to use the spectroscope to compare various continuous emission sources and to obtain the atomic line spectra of light emitted from discharge tubes. The objective of the experiment was to calculate the photon wavelengths, frequencies, and energies from the line spectra data. Demonstrating bohr’s model, demonstrating balmer series, etc… -5 Materials and Methods The procedure for this experiment was taken from the University of North Carolina at Chapel Hill Chemistry 101 Lab Manual. There were no deviations from the given procedure. After a pizza box was obtained, it was laid out flat. Using a razor knife and a piece of corrugated cardboard as a cutting board, the sighting hole, entrance slit, and illuminating slot were cut. The entrance slit was centered (vertically) on one side of the box 30 mm from the left corner of the box. A hole was cut approximately 30 mm high by 10 mm wide. The sighting hole was cut in the end of the box opposite the entrance slit. The hole was approximately 20 mm square centered (vertically) on the side of the box 30 mm from the left corner of the box. The illuminating slot was made 6 mm high by 120 mm wide in the end of the spectroscope beside the entrance slit. The illuminating slot was centered (vertically) and cut about 35 mm from the right edge of the entrance slit. After obtaining a piece of graph paper and carefully numbering every fifth line, the graph paper was centered over the illuminating slot on the outside of the box and taped in place so that the numbers were directly over the illuminating slot. Using black electrical tape, the box was put together tightly. Two pieces of black electrical tape were placed over the entrance slit to define an approximately 1 mm slit. The diffraction grating was mounted over the sighting hole, oriented so that the spectrum observed would consist of colored replicas of the slit seen on the graph paper. After the proper orientation was found, the diffraction grating was taped in place over the sighting hole. Results and Discussion
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Mitchell Graded Exp 6 - Experiment 6 Spectroscopy Spring...

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