Fluoride ion selective electrodes obey the following equation: E(V) = K - B(0.0592)log[F] where the fluoride concentration is expressed as mol/L and the temperature coefficient B is normally equal to 1. In a normal calibration procedure you dilute a standard fluoride solution to between 10 and 20 mg/L fluoride ion and then measure the response of the electrode. You then plot the data and do a linear regression to obtain the fitting coefficients K and B. Use the plotting and linear regression tools in Excel to calculate K and 3 from the data in the table. The coefficient 3 is close to 1, and can be determined from a calibration curve. F concentration (mg/L) 10.0 12.0 14.0 16.0 18.0 20.0 E(V) -0.395 -0.399 -0.403 -0.407 -0.410 -0.412 What value of K do you obtain from your plot? 4.0-0.586 |✓ What value of 3 do you obtain from your plot? 4.0 1.06 x
Fluoride ion selective electrodes obey the following equation: E(V) = K - B(0.0592)log[F] where the fluoride concentration is expressed as mol/L and the temperature coefficient B is normally equal to 1. In a normal calibration procedure you dilute a standard fluoride solution to between 10 and 20 mg/L fluoride ion and then measure the response of the electrode. You then plot the data and do a linear regression to obtain the fitting coefficients K and B. Use the plotting and linear regression tools in Excel to calculate K and 3 from the data in the table. The coefficient 3 is close to 1, and can be determined from a calibration curve. F concentration (mg/L) 10.0 12.0 14.0 16.0 18.0 20.0 E(V) -0.395 -0.399 -0.403 -0.407 -0.410 -0.412 What value of K do you obtain from your plot? 4.0-0.586 |✓ What value of 3 do you obtain from your plot? 4.0 1.06 x
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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Please help me with answering the second part. I have tried 1.06, 1.02, 0.98469, 0.985. Thank you for your help in advance1
![Fluoride ion selective electrodes obey the following equation:
E(V) = K - B(0.0592)log[F]
where the fluoride concentration is expressed as mol/L and the temperature coefficient B is normally equal to 1.
In a normal calibration procedure you dilute a standard fluoride solution to between 10 and 20 mg/L fluoride ion and then measure the response of the electrode. You then plot the data and do a linear regression to obtain the fitting coefficients
K and B. Use the plotting and linear regression tools in Excel to calculate K and 3 from the data in the table. The coefficient 3 is close to 1, and can be determined from a calibration curve.
F concentration
(mg/L)
10.0
12.0
14.0
16.0
18.0
20.0
E(V)
-0.395
-0.399
-0.403
-0.407
-0.410
-0.412
What value of K do you obtain from your plot?
4.0-0.586
✓
What value of 3 do you obtain from your plot?
4.0 1.06
x](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe49f0939-1d27-41de-9007-a1b394fa79d1%2F7a5a387d-25b9-4b1f-92db-56b8e8908281%2Fjmr5dmp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Fluoride ion selective electrodes obey the following equation:
E(V) = K - B(0.0592)log[F]
where the fluoride concentration is expressed as mol/L and the temperature coefficient B is normally equal to 1.
In a normal calibration procedure you dilute a standard fluoride solution to between 10 and 20 mg/L fluoride ion and then measure the response of the electrode. You then plot the data and do a linear regression to obtain the fitting coefficients
K and B. Use the plotting and linear regression tools in Excel to calculate K and 3 from the data in the table. The coefficient 3 is close to 1, and can be determined from a calibration curve.
F concentration
(mg/L)
10.0
12.0
14.0
16.0
18.0
20.0
E(V)
-0.395
-0.399
-0.403
-0.407
-0.410
-0.412
What value of K do you obtain from your plot?
4.0-0.586
✓
What value of 3 do you obtain from your plot?
4.0 1.06
x
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