Chapter 15, Problem 15.47P

Interpretation Introduction

Interpretation:

The equation which can show the response of the electrodes to ${\text{Ca}}^{\text{2+}}\text{and}{\text{Mg}}^{\text{2+}}$ has to be written.

Concept Introduction:

Ion-selective electrode:

An ion-selective electrode (ISE) best known as a specific ion electrode (SIE), is a sensor (or transducer) that transforms the activity of a specific ion dissolved in a solution into an electrical potential.

Response of ion-selective electrode:

The response of an ion-selective electrode to its primary ion (A) and to interfering ions of the same charge, when the response to every ion is Nernstian.

$\text{E=}\text{constant+}\frac{\text{0}\text{.05916}}{{\text{z}}_{\text{A}}}\text{log}\left[{\text{A}}_{\text{A}}\text{+}{\displaystyle \sum _{\text{X}}^{}{\text{K}}_{\text{A,X}}^{\text{Pot}}}{\text{A}}_{\text{X}}\right]$