In the Beer-Lambert Law equation, what does the "b" represent?

Concentration

Absorption

y-intercept

Buoyancy

Thickness of solution

The answer is Thickness of solution.

The Beer-Lambert Law equation has the following form:

A=E*b*c

Where A is absorbance, E is the molar absorbtivity, b is the path length of the sample and c is the concentration of the compound in solution.

Lamber-Ber's law shows that the absorbance of a solution is directly proportional to the concentration of the species to be absorbed, as well as the length of the path. For example, if the length of the path is constant, the UV / VIS spectroscopy can be used to determine the concentration of the absorbent substance in the solution.