Chapter 21, Problem 60QAP

Interpretation Introduction

(a)

Interpretation:

To determine whether ${\text{Co}}^{\text{2+}}$ ion will be oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ or not.

Concept introduction:

To a species oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$, the sum of electrode potential would be greater than zero, that is,

$E^0{}_{\text{ox}}\text{ion+}{E}^0{}_{\text{red}}{\text{H}}_{\text{2}}{\text{O}}_{\text{2}}>0$

Interpretation Introduction

(b)

Interpretation:

To determine whether ${\text{Cl}}^{-}$ ion will be oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ or not.

Concept introduction:

To a species oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$, the sum of electrode potential would be greater than zero, that is,

$E^0{}_{\text{ox}}\text{ion+}{E}^0{}_{\text{red}}{\text{H}}_{\text{2}}{\text{O}}_{\text{2}}>0$

Interpretation Introduction

(c)

Interpretation:

To determine whether ${\text{Fe}}^{\text{+2}}$ ion will be oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ or not.

Concept introduction:

To a species oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$, the sum of electrode potential would be greater than zero, that is,

$E^0{}_{\text{ox}}\text{ion+}{E}^0{}_{\text{red}}{\text{H}}_{\text{2}}{\text{O}}_{\text{2}}>0$

Interpretation Introduction

(d)

Interpretation:

To determine whether ${\text{Sn}}^{\text{+2}}$ ion will be oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ or not.

Concept introduction:

To a species oxidized by ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$, the sum of electrode potential would be greater than zero, that is,

$E^0{}_{\text{ox}}\text{ion+}{E}^0{}_{\text{red}}{\text{H}}_{\text{2}}{\text{O}}_{\text{2}}>0$