Table 1: Standard Solutions for FeSCN²+ Beer's Law Plot Solution [Fe3+] [SCN] S1 (blank) 4.0 x 10-2 M 0.0 M S2 4.0 x 10-2 M 4.0 x 10-5 M S3 4.0 x 10-2 M 8.0 x 10-5 M S4 4.0 x 10-2 M 12.0 x 10-5 M S5 4.0 x 10-2 M 16.0 x 10-5 M S6 4.0 x 10-2 M 20.0 x 10-5 M

Table 1: Standard Solutions for FeSCN²+ Beer's Law Plot Solution [Fe3+] [SCN] S1 (blank) 4.0 x 10-2 M 0.0 M S2 4.0 x 10-2 M 4.0 x 10-5 M S3 4.0 x 10-2 M 8.0 x 10-5 M S4 4.0 x 10-2 M 12.0 x 10-5 M S5 4.0 x 10-2 M 16.0 x 10-5 M S6 4.0 x 10-2 M 20.0 x 10-5 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

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 117AE: Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray...

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Question

Solve for Unknown Concentrations using the Best Fit Line and Absorbances

y=mx+b

Example data (however use y= 3605x - 0.006)
y = 4292.9 x - 0.021
Absorbance = 4292.9*concentration - 0.021
So, to find the unknown E concentrations for [FeSCN2+], would plug in the measured absorbance values and solve each for x. That gives the equilibrium concentrations for [FeSCN2+]

Table 1: Standard Solutions for FeSCN²+ Beer's Law Plot
Solution
[Fe3+]
[SCN]
S1 (blank)
4.0 x 10-2 M
0.0 M
S2
4.0 x 10-2 M
4.0 x 10-5 M
S3
4.0 x 10-2 M
8.0 x 10-5 M
S4
4.0 x 10-2 M
12.0 x 10-5 M
S5
4.0 x 10-2 M
16.0 x 10-5 M
S6
4.0 x 10-2 M
20.0 x 10-5 M

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