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 ?
Chapter21: Potentiometry
Section: Chapter Questions
Problem 21.28QAP
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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 ?
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