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Given the following data and the λmax determined in the previous questions, determine: 4) the molar absorptivity of cobalt at λmax of copper 5) the concentration of cobalt in mM 6) the concentration of copper in mM Copper concentration, mM λmax cobalt λmax copper 20.00 0.177 0.238 40.00 0.382 0.487 60.00 0.518 0.731 80.00 0.765 1.134 100.00 0.902 1.391 Cobalt concentration, mM λmax cobalt λmax copper 20.00 0.186 0.163 40.00 0.412 0.354 60.00 0.637 0.477 80.00 0.754 0.694 100.00 0.961 0.831       unknown, Abs at λmax cobalt 0.893   unknown, Abs at λmax copper 0.997

Given the following data and the λmax determined in the previous questions, determine: 4) the molar absorptivity of cobalt at λmax of copper 5) the concentration of cobalt in mM 6) the concentration of copper in mM Copper concentration, mM λmax cobalt λmax copper 20.00 0.177 0.238 40.00 0.382 0.487 60.00 0.518 0.731 80.00 0.765 1.134 100.00 0.902 1.391 Cobalt concentration, mM λmax cobalt λmax copper 20.00 0.186 0.163 40.00 0.412 0.354 60.00 0.637 0.477 80.00 0.754 0.694 100.00 0.961 0.831       unknown, Abs at λmax cobalt 0.893   unknown, Abs at λmax copper 0.997

Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter34: Particle Size Determination
Section: Chapter Questions
Problem 34.11QAP
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Given the following data and the λmax determined in the previous questions, determine:

4) the molar absorptivity of cobalt at λmax of copper

5) the concentration of cobalt in mM

6) the concentration of copper in mM

Copper
concentration, mM λmax cobalt λmax copper
20.00 0.177 0.238
40.00 0.382 0.487
60.00 0.518 0.731
80.00 0.765 1.134
100.00 0.902 1.391
Cobalt
concentration, mM λmax cobalt λmax copper
20.00 0.186 0.163
40.00 0.412 0.354
60.00 0.637 0.477
80.00 0.754 0.694
100.00 0.961 0.831
     
unknown, Abs at λmax cobalt 0.893  
unknown, Abs at λmax copper 0.997  
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