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The selectivity coefficient, , for a K ion-selective electrode is 1.97 à 10-3. When the electrode is placed into a 6.09 à 10-5 M K solution at pH 6.73, the potential is -0.199 V vs. SCE. If the pH of the solution is lowered to 1.32 and the ionic strength is kept constant, what is the potential of the electrode? Assume β = 1 for the electrode.
The selectivity coefficient, , for a K ion-selective electrode is 1.97 à 10-3. When the electrode is placed into a 6.09 à 10-5 M K solution at pH 6.73, the potential is -0.199 V vs. SCE. If the pH of the solution is lowered to 1.32 and the ionic strength is kept constant, what is the potential of the electrode? Assume β = 1 for the electrode.
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Jarrod RobelLv2
8 Sep 2019
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