The absorption spectra of two colored substances A and B are determined and the following data obtained using 1.00-cm cell: Solution Molarity A450 nm A750 nm A alone 5.0 x 10-4 0.800 0.100 B alone 2.0 x 10-4 0.100 0.600 A + B Unknown 0.600 1.000 1. Using the molarity and absorbance data for the solution containing A alone, calculate the molar absorptivities of A at 450 nm and 750 nm. 2. Using the molarity and absorbance data for the solution containing B alone, calculate the molar absorptivities of B at 450 nm and 750 nm. 3. Calculate the concentrations of A and B in the unknown solution.

The absorption spectra of two colored substances A and B are determined and the following data obtained using 1.00-cm cell: Solution Molarity A450 nm A750 nm A alone 5.0 x 10-4 0.800 0.100 B alone 2.0 x 10-4 0.100 0.600 A + B Unknown 0.600 1.000 1. Using the molarity and absorbance data for the solution containing A alone, calculate the molar absorptivities of A at 450 nm and 750 nm. 2. Using the molarity and absorbance data for the solution containing B alone, calculate the molar absorptivities of B at 450 nm and 750 nm. 3. Calculate the concentrations of A and B in the unknown solution.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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