Helllppp i have a test A compound has a molar absorptivity of 40.9 cm ^ - 1 * M ^ - 1 at 293 nm. If a 1.00 cm cuvette is used, and the absorbance found to be 0.111, what is the concentration of the sample ?

0.00271 M

Explanation:

To solve this problem we can use the formula:

Where A is the absorbance, ε is the molar absorptivity, C is the molar concentration and l is the optical path length.

We input the data given by the problem:

And solve for C:

your mom.com . : 0000

its first and third is your answer i did the qustion the fourth isnt right