A solution of a specific vitamin has λmax = 247 nm?
A solution of a specific vitamin has λmax = 247 nm and a concentration of 1.32 × 10-7 M. The absorbance of the solution at 247 nm is A = 0.180. What is the molar absorptivity of the vitamin at 247 nm? (sample pathlength = 1.00 cm)
Update:That's answer is wrong.
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A = e*l*C
0,18 = e*1*(1.32 × 10^-7 M)
e = 1,36*10^-6 L/mol·cm
you need to change 10^-6 to 10^6 and you will have the right answer