The sodium salt of 2-quinizarinsulfonic acid (NaQ) forms a complex with Al" that absorb strongly at 560 nm. Use the data from this paper to find the formula of the complex. In all solutions, cAl 3.7 x 10° M, and all measurements were made in 1.00-cm cells. b. Find the molar absorptivity of the complex and its uncertainty. a. cQ, M 1.00 x 10* 2.00 x 105 3.00 x 10$ 4.00 x 10 5.00 x 10 6.00 x 10 8.00 x 10* A560 0.131 0.265 0.396 0.468 0.487 0.498 0.499

The sodium salt of 2-quinizarinsulfonic acid (NaQ) forms a complex with Al" that absorb strongly at 560 nm. Use the data from this paper to find the formula of the complex. In all solutions, cAl 3.7 x 10° M, and all measurements were made in 1.00-cm cells. b. Find the molar absorptivity of the complex and its uncertainty. a. cQ, M 1.00 x 10* 2.00 x 105 3.00 x 10$ 4.00 x 10 5.00 x 10 6.00 x 10 8.00 x 10* A560 0.131 0.265 0.396 0.468 0.487 0.498 0.499

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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Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

3+
The sodium salt of 2-quinizarinsulfonic acid (NaQ) forms a complex with Al* that absorbs
strongly at 560 nm.
Use the data from this paper to find the formula of the complex. In all solutions, cAl
3.7 x 10° M, and all measurements were made in 1.00-cm cells.
b. Find the molar absorptivity of the complex and its uncertainty.
а.
cQ, M
1.00 x 105
2.00 x 105
3.00 x 105
4.00 x 105
5.00 x 105
6.00 x 105
8.00 x 105
1.00 x 104
A560
0.131
0.265
0.396
0.468
0.487
0.498
0.499
0.500

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