Chapter 15, Problem 15.37P

Interpretation Introduction

Interpretation:

The change in volts will the potential of an ${\text{Mg}}^{\text{2+}}$ ion-selective electrode if the electrode is removed form $\text{1}{\text{.00×10}}^{\text{-4}}{\text{M MgCl}}_{\text{2}}$ and placed in $\text{1}{\text{.00×10}}^{\text{-3}}{\text{M MgCl}}_{\text{2}}$ at ${\text{25}}^{\text{0}}\text{C}$ has to be calculated.

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.

Ion-selective electrode obeys following equation.

$\text{E=constant-0}\text{.05916log}\left[{\text{CN}}^{\text{-}}\right]$