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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
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
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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
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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