Spectroscopy
Molar absorbtivity is the measure of the

amount of light reflected and absorbed per unit concentration
amount of light absorbed per unit concentration
None of these
amount of light absorbed per unit length

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Spectroscopy
Vibrational spectroscopy is

a class of spectroscopic techniques which analyzes molecular motions
a large mass on a weak spring
an Infrared spectroscopy
a flashlight through a prism and shake it

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Spectroscopy
Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance?

Because %T is dependant on the power of the incident radiation
Because %T cannot be measured as accurately as absorbance
None of these
Because absorbance is proportional to the concentration of the analyte, whereas %T is not

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