For the experiment this week, you'll use the relationship between FeSCN2* absorbance and concentration. Suppose you find that the FeSCN2+ has the following calibration curve. Absorbance Absorbance vs. Concentration of Fe(SCN)²+ 0.8 0.6 0.4 0.2 0 0.00000 0.00005 0.00010 0.00015 0.00020 [Fe(SCN)2+] (M) Suppose you measure the absorbance of an unknown FeSCN2+ solution and find its absorbance to be 0.552. What is the molar concentration of FeSCN2* in the unknown solution? Hint: if you're not sure how to solve this, watch the videos on the Pre-Lab Watch: Concept Videos page. O 0.577 M O 0.528 M O 0.000142 M y=3707.5x-0.0245 R²=0.9989 0.000155 M
For the experiment this week, you'll use the relationship between FeSCN2* absorbance and concentration. Suppose you find that the FeSCN2+ has the following calibration curve. Absorbance Absorbance vs. Concentration of Fe(SCN)²+ 0.8 0.6 0.4 0.2 0 0.00000 0.00005 0.00010 0.00015 0.00020 [Fe(SCN)2+] (M) Suppose you measure the absorbance of an unknown FeSCN2+ solution and find its absorbance to be 0.552. What is the molar concentration of FeSCN2* in the unknown solution? Hint: if you're not sure how to solve this, watch the videos on the Pre-Lab Watch: Concept Videos page. O 0.577 M O 0.528 M O 0.000142 M y=3707.5x-0.0245 R²=0.9989 0.000155 M
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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![For the experiment this week, you'll use the relationship between FeSCN2+ absorbance and
concentration. Suppose you find that the FeSCN2+ has the following calibration curve.
Absorbance
Absorbance vs. Concentration of
Fe(SCN)²+
0.8
0.6
0.4
0.2
0
0.00000 0.00005 0.00010 0.00015 0.00020
[Fe(SCN)²+] (M)
Suppose you measure the absorbance of an unknown FeSCN2+ solution and find its absorbance to be
0.552. What is the molar concentration of FeSCN2* in the unknown solution? Hint: if you're not sure
how to solve this, watch the videos on the Pre-Lab Watch: Concept Videos page.
0.577 M
O 0.528 M
y=3707.5x -0.0245
R² = 0.9989
0.000142 M
O 0.000155 M](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9211a3ee-a881-44f3-8841-c9ec955f6142%2F7a93c6a3-6ce1-4cb9-a169-929db01bdf9c%2Fcs9xp88_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For the experiment this week, you'll use the relationship between FeSCN2+ absorbance and
concentration. Suppose you find that the FeSCN2+ has the following calibration curve.
Absorbance
Absorbance vs. Concentration of
Fe(SCN)²+
0.8
0.6
0.4
0.2
0
0.00000 0.00005 0.00010 0.00015 0.00020
[Fe(SCN)²+] (M)
Suppose you measure the absorbance of an unknown FeSCN2+ solution and find its absorbance to be
0.552. What is the molar concentration of FeSCN2* in the unknown solution? Hint: if you're not sure
how to solve this, watch the videos on the Pre-Lab Watch: Concept Videos page.
0.577 M
O 0.528 M
y=3707.5x -0.0245
R² = 0.9989
0.000142 M
O 0.000155 M
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