Alkaline error associated with the use of glass membrane pH electrodes for pH measurements will yield: Select one: O a. False low pH readings at low sample pH values due to the positive interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O b. False low pH readings at very high sample pH values due to positive interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O c. False high pH reactings at low sample pH values due to the negative interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O d. False high pH readings at very high sample pH values due to positive interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O e. Both false low and false high values depending on experimental setup

Alkaline error associated with the use of glass membrane pH electrodes for pH measurements will yield: Select one: O a. False low pH readings at low sample pH values due to the positive interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O b. False low pH readings at very high sample pH values due to positive interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O c. False high pH reactings at low sample pH values due to the negative interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O d. False high pH readings at very high sample pH values due to positive interference of Na+ and other alkali cations on the potential (EMF) of the glass membrane O e. Both false low and false high values depending on experimental setup

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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Question

Clear my choice
Alkaline error associated with the use of glass membrane pH electrodes for pH measurements will yield:
Select one:
O a. False low pH readings at low sample pH values due to the positive interference of Na+ and other alkali cations on the potential
(EMF) of the glass membrane
cion
O b. False low pH readings at very high sample pH values due to positive interference of
Na+ and other alkali cations on the potential (EMF) of the glass membrane
O c. False high pH reactings at low sample pH values due to the negative interference of
Na+ and other alkali cations on the potential (EMF) of the glass membrane
O d. False high pH readings at very high sample pH values due to positive interference of
Na+ and other alkali cations on the potential (EMF) of the glass membrane
O e. Both false low and false high values depending on experimental setup
Clear my choice
A Na ion-selective electrode increased in voltage by 59.16 mV when the sodium
selective electrode measured a decrease of 29.58 mV when the sulfide activity increased by a factor of 10. Why?
I. For cations, the measured potential increases by a factor of a x 59.16 mV for every 10-fold change in the activity of the cation
activity increased by a factor of 10. An S ion-
aved
Time left
it of
the charge on the cation
hr a factor of n x 59.16 mV for every 10-fold change in the activity of the anion,

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