chemistry spectrophotometry

Question

The transmittance of a 0.010 M solution of a compound in a 0.100-cm

pathlength cell is T 8.23%. Find the absorbance (A) and the molar absorptivity (ε).

Answer 1

A = log₁₀(I₀/I) = log₁₀(1/T) = log₁₀(100/T in %) = 2 - log₁₀(T in %)

Beer's Law states: A = ελC , solve for ε given the path length (λ) and concentration(C) and the A you found in first part.( ε will be in L/(mole-cm))