A solution of a specific vitamin has max 237 nm and a conce

A solution of a specific vitamin has ?max = 237 nm and a concentration of 2.45

Solution

Using Beer - Lambert law.

absorbance A = 0.16

Beer-Lambert law says: A = eLc. We\'re looking for e being epsilon.
So let\'s make e the subject. It\'s the molar absorptivity
Molar absorptivity e = A / Lc.
We know that L = 1 cm. L = sample pathlength
We need to know c being molar concentration.:

c = 2.45