elect 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 Nat 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
elect 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 Nat 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
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
Related questions
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 te 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. Bath 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 ion activity increased by a factor of 10. An S-¯ son-
selective electrode measured a decrease of 29.58 mV when the sulfide activvity increased by a factor of 10. Why?
I. For cations, the measured potential increases by a factor of a 59 16 mV for every 10-fold change in the activity of the cation
4
aved
Tume ef
it of
the charge on the cation
hy a factor of x 59.16 mV for every 10-fold change in the activity of the anian](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7b5272ea-76b4-4fda-84aa-b4d0e30f9298%2F69d5eaf1-105f-4a01-9e11-41a393201624%2Fyuofg3v_processed.jpeg&w=3840&q=75)
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 te 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. Bath 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 ion activity increased by a factor of 10. An S-¯ son-
selective electrode measured a decrease of 29.58 mV when the sulfide activvity increased by a factor of 10. Why?
I. For cations, the measured potential increases by a factor of a 59 16 mV for every 10-fold change in the activity of the cation
4
aved
Tume ef
it of
the charge on the cation
hy a factor of x 59.16 mV for every 10-fold change in the activity of the anian
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