What is the molar extinction coefficient at 625 nm for this copper (II) acetate solution? How was it determined? Can the calibration curve be used to accurately predict the absorbance of 0.0150 M copper (II) acetate solution at 625? Why or why not?

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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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What is the molar extinction coefficient at 625 nm for this copper (II) acetate solution? How was it determined?

Can the calibration curve be used to accurately predict the absorbance of 0.0150 M copper (II) acetate solution at 625? Why or why not? 

Absorbance vs. Concentration
Absorbance
- 2.71"x+ -0.0118 R = 0.989
0.8
0.6
0,4
0.2
0.0
0.05
0.10
0.15
0.20
0.25
Concentration
Table 1
Standard
Concentration
Absorbance
Solution
(М)
1
0.025
0.049
2
0.050
0.153
3
0.100
0.242
4
0.200
0.499
5
0.250
0.694
Absorbance
Transcribed Image Text:Absorbance vs. Concentration Absorbance - 2.71"x+ -0.0118 R = 0.989 0.8 0.6 0,4 0.2 0.0 0.05 0.10 0.15 0.20 0.25 Concentration Table 1 Standard Concentration Absorbance Solution (М) 1 0.025 0.049 2 0.050 0.153 3 0.100 0.242 4 0.200 0.499 5 0.250 0.694 Absorbance
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