Lecture 2 - Spectroscopy

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Astronomy

Spectroscopy

University/Undergrad

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6 Terms

1
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What are the three different types of spectroscopy?

Absorption, emission and stimulated emission

2
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How do you calculate transmittance?

T = I/I0

3
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How do you calculate absorbance without transmittance?

A = εcl

4
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How do you calculate absorption using the transmittance?

A = -logT

5
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What are the units for the molar absorption coefficient?

cm^-1mol^-1dm^3

6
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Where does the Beer Lambert Law start to fail?

At high concentrations when the molecules can interact with each other, which causes ε to change