Assuming linear behavior and a pathlength of exactly 1 cm, what molar concentration will measure an absorbance of

For this problem, we use the equation derived from Beer's Law as written below:

A = ∈LC,

where

A is the absorbance

∈ is the molar absorptivity

L is the path length of the cuvette

C is the concentration of the sample solution placed in the cuvette

To determine C, we have to know the rest of the parameters. Generally, the equation for C would be:

C = A/∈L = A/∈ (1 cm)

C = A/∈

If you know the absorbance and the molar absorptivity in mol/L·cm, you can determine the value of C.