SupernovaChemistry - NASA€¦ · TeamMembers:_____ Date:_____ Class:_____ SupernovaChemistry
Transcript of SupernovaChemistry - NASA€¦ · TeamMembers:_____ Date:_____ Class:_____ SupernovaChemistry
Team Members: _________________________________________________________________________
Date: ____________ Class: ____________________________________________
Supernova Chemistry Lab procedure
li
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Atomic spectroscopy is an extremely
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Introduction
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"fingerprint" in
into its composite colors.incoming light
Asdwellingan example,
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"fingerprint"wavelengths of 563 nanometers (nm) and 615 nm. This combination is the
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Team Members: _________________________________________________________________________
Date: ____________ Class: ____________________________________________
Listen
Proced re
These instrumentsto
u
your teacher'sare expensive
directionsandon how
fragile,to use and care for the spectrometer.
the rules for their use.so make certain that you understand
placedGo through ea
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measurements.ith your lab
Everyonegroup. Use
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theWhenlab to
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thetheirlight
observationsfrom a gas tube,
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sure
thethat
spectrometerthe center of the
slit.glowing spectrum tube is very close to and directly in front of
elCAUTION: Do not touch the gas tubes because they are hot and may give you an
1.
ectrical shock!
eachSketchIncande
thecoloredwhatscent
youregion.
light seebulb
Also,on
(wthehitediagram below,
lig
spectrum. Sketch the rangemark
ofthe
ht)
limits ofmarking the wavelengths that define
note regions where the colors arecolorsmost bright
observed usingyour visual
rangethe col
onored pencilboth ends of
and most dim.s and
2. Hydrogen gas tube Measure and draw the wavelength of any line spectra that appear on the blankspectrum on your data sheet. Sketch the range of any colors observed using thecolored pencils and note regions where the colors are most bright and most dim.
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Date: ____________ Class: ____________________________________________
3. Helium gas tubeMeasure and draw the wavelength of any line spectra that appear on the blankspectrum on your data sheet. Sketch the range of any colors observed using thecolored pencils and note regions where the colors are most bright and most dim.
4. Neon gas tubeMeasure and draw the wavelength of any line spectra that appear on the blankspectrum on your data sheet. Sketch the range of any colors observed using thecolored pencils and note regions where the colors are most bright and most dim.
5. Mercury gas tubeMeasure and draw the wavelength of any line spectra that appear on the blankspectrum on your data sheet. Sketch the range of any colors observed using thecolored pencils and note regions where the colors are most bright and most dim.
Team Members: _________________________________________________________________________
Date: ____________ Class: ____________________________________________
6. Nitrogen gas tubeMeasure and draw the wavelength of any line spectra that appear on the blankspectrum on your data sheet. Sketch the range of any colors observed using thecolored pencils and note regions where the colors are most bright and most dim.
7. "Plant Grow" light bulbThis is a bulb that is supposed to provide more light in the wavelengths thatplants use than normal light bulbs. Sketch what you see, marking thewavelengths that define each colored region. Mark the limits of your visual rangeon both ends of the spectrum. Sketch the range of any colors observed using thecolored pencils and note regions where the colors are most bright and most dim.
8. Compact Fluorescent light fixtureMeasure and draw the wavelength of any line spectra that appear on the blankspectrum on your data sheet. Sketch the range of any colors observed using the colored pencils and note regions where the colors are most bright and most dim.
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Date: ____________ Class: ____________________________________________
9. Chemical Light SticksThese light sticks work by a chemical reaction which releases light energyinstead of heat, sound, or electricity as other reactions may do. The reaction isvery similar to the one that occurs in the tails of fireflies! On your data sheet,sketch what you see, marking the wavelengths that define each colored region. Also, mark the limits of your visual range on both ends of the spectrum. Sketchthe range of any colors observed using the colored pencils and note regionswhere the colors are most bright and most dim.
10. Fluorescent light sourceTurn your spectrometer slit toward a standard fluorescent light tube. This typeof lighting is very common in schools and offices because it uses much lesselectricity than traditional incandescent light bulbs. Measure and draw the wavelength of any line spectra that appear on the blank spectrum on your datasheet. Sketch the range of any colors observed using the colored pencils, and note the regions where the colors are most bright and most dim.