Calculate individual concentrations in an unknown mixture... Calculate the individual concentrations of C and of D in the following unknown mixture: Compound C: Absorbance at 365nm = 0.150 Absorbance at 470nm = 0.642 Concentration = 1.00 X 10^-4 Compound D: Absorbance at 365nm = 0.684 Absorbance at 470nm = 0.088 Concentration = 2.00 X 10^-4 Unknown Mixture: Absorbance at 365nm = 0.721 Absorbance at 470nm = 0.604 Concentration