Help Please Chem I need help on my lab please CHM201 General Chemistry and Laboratory I
Laboratory 8. Spectroscopy
December 8, 2021
Name
Help Please Chem I need help on my lab please CHM201 General Chemistry and Laboratory I
Laboratory 8. Spectroscopy
December 8, 2021
Name
Group
PLEASE ENABLE EDITING BEFORE FILLING OUT THIS REPORT!
This report is due on or before December 19, 2021 @11:59PM
No report will not be accepted for credit after that time.
Grade:
Lab average to date:
Overall average to date:
Results: (You may attach a copy of your group data.) (70 pts)
1. Qualitative analysis:
Source
Observations
Fluorescent
Room Lights
Incandescent
Light Bulb
2. Colored Light Bulbs:
Incandescent Light Bulb
Color
Observations
Bulb #1
Bulb #2
3. Discharge Tubes:
Tube Contents
Observed Wavelengths of Discrete Spectral Lines
hydrogen
helium
neon
mercury
4. Wavelength of a Low Power Laser
Observed Wavelength(s) of Discrete Spectral Line(s)
Description of the laser as compared to other line sources
Questions: (30 pts)
1. Identify a light source that is continuous, one that exhibits line spectrums and one that shows both (if any). How many spectral lines were observed for each?
Light Source
# of Spectral Lines
2. Go online and find the spectrums for the four discharge tubes. Did your observations differ from these published data? If so, why do you think it differed? Record the url for the page you visited for each spectrum.
Spectrum
Same? (Yes/No)
Reason
3. Do a little investigation and explain (
briefly
) why the laser’s spectrum appeared as it did.
