Cat Noir was tasked to determine the concentration of a CuSO4 unknown solution. She prepared 5 different standards of CuSO4 using the table below as her guide. She ran the standards and the unknown solution in the UV-VIS Spectrophometer, and recorded the absorbances of each solution. Show linear equation derived from calibration curve and solution to concentration of the unknown solution below. Encircle final answer.
Cat Noir was tasked to determine the concentration of a CuSO4 unknown solution. She prepared 5 different standards of CuSO4 using the table below as her guide. She ran the standards and the unknown solution in the UV-VIS Spectrophometer, and recorded the absorbances of each solution. Show linear equation derived from calibration curve and solution to concentration of the unknown solution below. Encircle final answer.
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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Cat Noir was tasked to determine the concentration of a CuSO4 unknown solution. She prepared 5 different standards of CuSO4 using the table below as her guide. She ran the standards and the unknown solution in the UV-VIS Spectrophometer, and recorded the absorbances of each solution.
Show linear equation derived from calibration curve and solution to concentration of the unknown solution below. Encircle final answer.
|
Cuvette |
Volume 0.5000 M CuSO4 |
Volume distilled H2O |
Absorbance |
|
1 |
1.000 mL |
4.000 mL |
0.607 |
|
2 |
2.000 mL |
3.000 mL |
0.655 |
|
3 |
3.000 mL |
2.000 mL |
0.709 |
|
4 |
4.000 mL |
1.000 mL |
0.797 |
|
5 |
5.000 mL |
0.000 mL |
0.832 |
|
Blank |
0.000 mL |
5.000 mL |
0.000 |
|
Unknown solution |
0.684 |
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