Exercise: A calibration curve is obtained by measuring the florescence intensities of a series of standards. The following data are obtained Concentration (ppm) Florescence intensity 0.00 0.10 0.20 0.40 0.80 0.00 5.80 12.20 22.30 43.30 Plot the florescence vs. concentration according to plotting guideline. Obtain the best-fit straight line. Q1) What is the value of R2? a.0.99398 b.0.99893 c.0.99983 d.0.99839 e.0.99894 Q2) Calculate the concentration of an unknown sample that has fluorescence intensity of 18.5 a.0.32123 b.0.33300 c.0.32621 d.0.33312 e. 0.33316
Exercise: A calibration curve is obtained by measuring the florescence intensities of a series of standards. The following data are obtained Concentration (ppm) Florescence intensity 0.00 0.10 0.20 0.40 0.80 0.00 5.80 12.20 22.30 43.30 Plot the florescence vs. concentration according to plotting guideline. Obtain the best-fit straight line. Q1) What is the value of R2? a.0.99398 b.0.99893 c.0.99983 d.0.99839 e.0.99894 Q2) Calculate the concentration of an unknown sample that has fluorescence intensity of 18.5 a.0.32123 b.0.33300 c.0.32621 d.0.33312 e. 0.33316
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
Problem 77PS
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![Exercise: A calibration curve is obtained by measuring the florescence intensities of a
series of standards. The following data are obtained
Concentration (ppm) Florescence intensity
0.00
0.10
0.20
0.40
0.80
0.00
5.80
12.20
22.30
43.30
Plot the florescence vs. concentration according to plotting guideline.
Obtain the best-fit straight line.
Q1) What is the value of R2?
a.0.99398 b.0.99893 c.0.99983 d.0.99839 e.0.99894
Q2) Calculate the concentration of an unknown sample that has fluorescence
intensity of 18.5
a.0.32123 b.0.33300 c.0.32621 d.0.33312 e.
0.33316](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2892ac53-9884-4794-aa1f-fd8700bb7dc4%2F7b8fac65-268c-44db-ad94-9d51efde7f48%2F525fsoa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Exercise: A calibration curve is obtained by measuring the florescence intensities of a
series of standards. The following data are obtained
Concentration (ppm) Florescence intensity
0.00
0.10
0.20
0.40
0.80
0.00
5.80
12.20
22.30
43.30
Plot the florescence vs. concentration according to plotting guideline.
Obtain the best-fit straight line.
Q1) What is the value of R2?
a.0.99398 b.0.99893 c.0.99983 d.0.99839 e.0.99894
Q2) Calculate the concentration of an unknown sample that has fluorescence
intensity of 18.5
a.0.32123 b.0.33300 c.0.32621 d.0.33312 e.
0.33316
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