A solution of a specific vitamin has lambda max = 235 nm and a concentration of 8.74 times 10-
7 M. The absorbance of the solution at 235 nm is A = 0.140. What is the molar absorptivity of
the vitamin at 235 nm? (sample pathlength = 1.00 cm)
Solution
molar absorbivity = A/cl = 0.14/(8.74 x10^ -7) = 1.6 x10^ 5 Lmol-1 cm-1
7 M. The absorbance of the solution at 235 nm is A = 0.140. What is the molar absorptivity of
the vitamin at 235 nm? (sample pathlength = 1.00 cm)
Solution
molar absorbivity = A/cl = 0.14/(8.74 x10^ -7) = 1.6 x10^ 5 Lmol-1 cm-1
