Which Is True for Spectroscopy of a Mixture

question 1

Multiple Choice

Which is true for spectroscopy of a mixture?

• A)The absorbance for a mixture at a particular wavelength is the sum of the absorbances for the components that absorb at the particular wavelength.
• B)Spectrophotometers can differentiate between mixture components that absorb at the same wavelength.
• C)Each component in a mixture has the same molar absorptivity at the same wavelength.
• D)The concentration for each component in the mixture is easily calculated with a set of simultaneous equations if there is significant overlap of individual spectra.
• E)The concentration for each component in a mixture is easily calculated by least squares for guesses of each component when the individual spectra are well resolved.

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