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

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

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Spectroscopy
Vibrational spectroscopy is

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

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