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An ion selective electrode for NO2- has the following values of Log k for the listed interferents.                                   Interferent                                     Logk                                 F-                                                   -3.1                               SO42-                                             -4.1                                 I-                                                    -1.2                                 NO3-                                              -3.3   Which ion is the most serious interferent? Why? For what activity of this interferent is the potential (E) equivalent to a solution in which aNO2- = 2.75 x 10-4 ?

An ion selective electrode for NO2- has the following values of Log k for the listed interferents.                                   Interferent                                     Logk                                 F-                                                   -3.1                               SO42-                                             -4.1                                 I-                                                    -1.2                                 NO3-                                              -3.3   Which ion is the most serious interferent? Why? For what activity of this interferent is the potential (E) equivalent to a solution in which aNO2- = 2.75 x 10-4 ?

Chemistry
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
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  1. An ion selective electrode for NO2- has the following values of Log k for the listed interferents.

 

 

                              Interferent                                     Logk

 

                              F-                                                   -3.1

                              SO42-                                             -4.1

                                I-                                                    -1.2

                                NO3-                                              -3.3

 

Which ion is the most serious interferent? Why? For what activity of this interferent is the potential (E) equivalent to a solution in

which aNO2- = 2.75 x 10-4 ?

 

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