Posted by Jaden on .
The dye molecule 7-aminocoumarin has an extinction coefficient of 2800M-1cm-1 at 432nm. An aqueous sample of 7-aminocoumarin is placed in a cuvette with a 1.00cm path length and the absorbance is found to be 1.75 at 432nm. What is the molarity of 7-aminocoumarin in this sample?
The extinction coefficient is the slope of the line, and will not change ever at 432nm. This is just plug and chug.
solve for c,