Please refer to the graph in the lab document. If the absorbance of a solution containing FeSCN2+ is found to be 0.7500, what is the concentration of this solution? 2.6 x 10-4 M (2.6 times 10 to the minus 4th power M) O 1.0 x 10-4 M (1.0 times 10 to the minus 4th power M) O 3.0 x 10-4 M (3.0 times 10 to the minus 4th power M) O 2.0 x 10-4 M (2.0 times 10 to the minus 4th power M) O 0.7500 M O 1.6 x 10-4 M (1.6 times 10 to the minus 4th power M)

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
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Chapter24: Introduction To Spectrochemical Methods
Section: Chapter Questions
Problem 24.16QAP
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Please refer to the graph in the lab
document. If the absorbance of a
solution containing FeSCN2+ is found to
be 0.7500, what is the concentration of
this solution?
O 2.6 x 104 M (2.6 times 10 to the
minus 4th power M)
O 1.0 x 104 M (1.0 times 10 to the
minus 4th power M)
O 3.0 x 10-4 M (3.0 times 10 to the
minus 4th power M)
O 2.0 x 10-4 M (2.0 times 10 to the
minus 4th power M)
O 0.7500 M
O 1.6 x 104 M (1.6 times 10 to the
minus 4th power M)
Transcribed Image Text:Please refer to the graph in the lab document. If the absorbance of a solution containing FeSCN2+ is found to be 0.7500, what is the concentration of this solution? O 2.6 x 104 M (2.6 times 10 to the minus 4th power M) O 1.0 x 104 M (1.0 times 10 to the minus 4th power M) O 3.0 x 10-4 M (3.0 times 10 to the minus 4th power M) O 2.0 x 10-4 M (2.0 times 10 to the minus 4th power M) O 0.7500 M O 1.6 x 104 M (1.6 times 10 to the minus 4th power M)
Concentration of FeSCN2+
Absorbance (Y axis)
Percent Transmittance (%T)
(X axis)
100
1.00E-04
0.495
32
2.00E-04
0.955
11.1
3.00E-04
1.398
Calibration Curve (Absorbance vs. Concentration of FESCN²*)
1.6
1.4
y = 4713.6x.
1.2
1
0.8
0.6
0.4
0.2
0.00005
0.0001
0.00015
0.0002
0.00025
0.0003
0.00035
Concentration of FeSCN²+
Absorbance
Transcribed Image Text:Concentration of FeSCN2+ Absorbance (Y axis) Percent Transmittance (%T) (X axis) 100 1.00E-04 0.495 32 2.00E-04 0.955 11.1 3.00E-04 1.398 Calibration Curve (Absorbance vs. Concentration of FESCN²*) 1.6 1.4 y = 4713.6x. 1.2 1 0.8 0.6 0.4 0.2 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 Concentration of FeSCN²+ Absorbance
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