Question

How is the wavelength of light used related to absorbance? Which part of the Beer's Law equation accounts for the wavelength used?

a. Absorbance is inversely proportional to wavelength; the Beer's Law equation includes the molar absorptivity.
b. Absorbance is directly proportional to wavelength; the Beer's Law equation includes the concentration.
c. Absorbance is directly proportional to wavelength; the Beer's Law equation includes the path length.
d. Absorbance is inversely proportional to wavelength; the Beer's Law equation includes the concentration.

Answer 1

Absorbance is inversely proportional to wavelength; the Beer's Law equation includes the molar absorptivity.

Step-by-step explanation:

The wavelength of light used is related to absorbance in the sense that absorbance is inversely proportional to wavelength. This means that as the wavelength of light increases, the absorbance decreases, and vice versa. In the Beer's Law equation, the part that accounts for the wavelength used is the molar absorptivity. The molar absorptivity is a constant that represents the ability of a substance to absorb light at a specific wavelength.