Lab Data Verify your concentration value. Did you report your data to the correct number of significant figures? Analytical wavelength for red dye (nm) Calibration curve Solution 1 23 4 5 Dye concentration (µM) 30.20 15.10 7.56 3.78 1.89 Molar absorptivity (μM-¹cm-¹) Unknown solution Absorbance Concentration of unknown red dye (µM) 501.4 Absorbance 0.800 0.441 0.186 0.111 0.027 0.0271 - X 0.341
Lab Data Verify your concentration value. Did you report your data to the correct number of significant figures? Analytical wavelength for red dye (nm) Calibration curve Solution 1 23 4 5 Dye concentration (µM) 30.20 15.10 7.56 3.78 1.89 Molar absorptivity (μM-¹cm-¹) Unknown solution Absorbance Concentration of unknown red dye (µM) 501.4 Absorbance 0.800 0.441 0.186 0.111 0.027 0.0271 - X 0.341
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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Question
Calculate the concentration of unknown red dye solution

Transcribed Image Text:Lab Data
Verify your concentration value.
Did you report your data to the correct number of significant figures?
Analytical wavelength for red dye (nm)
Calibration curve
Solution
1
23
4
5
Dye concentration (µM)
30.20
15.10
7.56
3.78
1.89
Molar absorptivity (μM-¹cm-¹)
Unknown solution
Absorbance
Concentration of unknown red dye (µM)
501.4
Absorbance
0.800
0.441
0.186
0.111
0.027
0.0271
0.341
- X
How to calculate concentration from absorbance
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Follow-up Question
Calculate the concentration of unknown red dye solution
solution is not =12.9,134,12.55,0.34

Transcribed Image Text:Lab Data
Verify your concentration value.
Did you report your data to the correct number of significant figures?
Analytical wavelength for red dye (nm)
Calibration curve
Solution
1
23
4
5
Dye concentration (µM)
30.20
15.10
7.56
3.78
1.89
Molar absorptivity (μM-¹cm-¹)
Unknown solution
Absorbance
Concentration of unknown red dye (µM)
501.4
Absorbance
0.800
0.441
0.186
0.111
0.027
0.0271
0.341
- X
How to calculate concentration from absorbance
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