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ry Bookmarks Tools Window Help Q. Search slmodlibis/view.php?id 2857303 Getting started B The office 3 Apple E ESPN 3 Yahoo 3 Disney MovieTube I watc Print Calculator Periodic Table 4 of 14 Sapling Learning Explain how an ion-selective electrode (ISE), shown below, operates by placing the following steps in the correct order beginning after the electrode is placed in the aqueous sample solution. Electrode placed in aqueous solution external sample solution equilibrate Analyne ions diffuse out of the membrane. A charge imbalance e interface develops of the analyte ion inthe eademal determined from the potential difference. potential difference is measured using the and entermal reference electrodes. Filling Solution AgIAgCI Ion-Selective Membrane e Previous 8 Give up & view solution check Answer o Next l Ext

Explanation / Answer

(1) Analite ions diffuse out of the membrane

(2) Analyte ions in external sample solution equilibriate with ion exchange sites in the membrane

(3) A charge imbalance, potential difference, across the interface develops.

(4) The potential difference is measured using internal and external reference electrodes.

(5) The concentration of the analyte in the external solution is determined from the potential differences.

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