Question

What is the molar absorptivity e of a compound if a 2.5 X 10^-5 molar solution has an absorbance of 0.333 when the path length is 1.0cm? (Equation = A =ebc)

Answer 1

According to Beer-Lambert Law

A = εcl

ε =A/cl

= 0.86/(0.0032 M×1.0 cm)

= $268.75 M^{-1} cm^{-1}$