You calibrate a fluoride ion-selective electrode (F) with a series of fluoride standards. Plotting E (mV) vs. Log [F] gives a straight line and th equation of the line from your regression analysis is y = -58.5x-192.5. You analyze an unknown water sample with the F* -ISE and the potential is 81.2 mV. Calculate the [F]. ● ● ● ● A. - 4.68 M B. 4.7 x 104 M OC. 2.7 x 103 M D. 2.1 x 10-5 M E. Not Enough Information to determine
You calibrate a fluoride ion-selective electrode (F) with a series of fluoride standards. Plotting E (mV) vs. Log [F] gives a straight line and th equation of the line from your regression analysis is y = -58.5x-192.5. You analyze an unknown water sample with the F* -ISE and the potential is 81.2 mV. Calculate the [F]. ● ● ● ● A. - 4.68 M B. 4.7 x 104 M OC. 2.7 x 103 M D. 2.1 x 10-5 M E. Not Enough Information to determine
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter23: Potentiometry
Section: Chapter Questions
Problem 23.14QAP
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