Chapter 23, Problem 23.15QAP

Interpretation Introduction

(a)

Interpretation:

The standard potential for the following reaction should be predicted.

${\text{Ag}}_{\text{3}}{\text{AsO}}_{\text{4}}\left(s\right)+3{\text{e}}^{-}\rightleftharpoons \text{3Ag}\left(s\right)+{\text{AsO}}_{\text{4}}{}^{3-}$

Concept introduction:

Indicator electrode is a type of electrode that is used in potentiometric titrations. It is used as an endpoint indicator. Membrane electrode and metallic electrodes are classify as indicator electrodes

Interpretation Introduction

(b)

Interpretation:

The schematic representation of a cell with a silver indicator electrode and a reference SCE should be stated.

Concept introduction:

Indicator electrode is a type of electrode that is used in potentiometric titrations. It is used as an endpoint indicator. Membrane electrode and metallic electrodes are classify as indicator electrodes

Interpretation Introduction

(c)

Interpretation:

The equation that relates the measured potential of the cell in (b) to ${\text{pAsO}}_{\text{4}}$ should be predicted.

Concept introduction:

Indicator electrode is a type of electrode that is used in potentiometric titrations. It is used as an endpoint indicator. Membrane electrode and metallic electrodes are classify as indicator electrodes

Interpretation Introduction

(d)

Interpretation:

The ${\text{pAsO}}_{\text{4}}$ of a solution which is saturated with ${\text{Ag}}_{\text{3}}{\text{AsO}}_{\text{4}}$ and contained in the cell described in (b) when the resulting potential is 0.193 V should be predicted.

Concept introduction:

Indicator electrode is a type of electrode that is used in potentiometric titrations. It is used as an endpoint indicator. Membrane electrode and metallic electrodes are classify as indicator electrodes