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

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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,
Transcribed Image Text: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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