A potassium ion-selective electrode is used to measure the concentration of potassium ion in a solution that contains 6.0 x 10-3 M cesium (activity). The electrode responds equally to either ion (KKC = 1). If the potential versus a reference electrode is -18.3 mV for a 5.0 x 10-3 M KCI solution and +20.9 mV in the sample solution, what is the activity of K+ in the sample? Assume Nernstian response %3!
A potassium ion-selective electrode is used to measure the concentration of potassium ion in a solution that contains 6.0 x 10-3 M cesium (activity). The electrode responds equally to either ion (KKC = 1). If the potential versus a reference electrode is -18.3 mV for a 5.0 x 10-3 M KCI solution and +20.9 mV in the sample solution, what is the activity of K+ in the sample? Assume Nernstian response %3!
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in a solution that contains 6.0 x 10-3 M cesium (activity). The electrode responds equally
to either ion (KK.C = 1). If the potential versus a reference electrode is -18.3 mV for a 5.0
x 10-3 M KCI solution and +20.9 mV in the sample solution, what is the activity of K+ in
the sample? Assume Nernstian response"
Transcribed Image Text:A potassium ion-selective electrode is used to measure the concentration of potassium ion
in a solution that contains 6.0 x 10-3 M cesium (activity). The electrode responds equally
to either ion (KK.C = 1). If the potential versus a reference electrode is -18.3 mV for a 5.0
x 10-3 M KCI solution and +20.9 mV in the sample solution, what is the activity of K+ in
the sample? Assume Nernstian response
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