The formation of Ag 2 S by the reaction between low concentrations of Hydrogen sulfide with silver metal in presence of air that leads to the tarnishing of Silver metal and presence of Aluminum metal in basic in Silver polish is given. Various questions based on these reactions are to be answered. Concept introduction: In ion electron method or the half-reaction method the given equation is written in two parts, one is reduction half-reaction and the other is oxidation half-reaction. Both the reactions are separately balanced and then they are added to give the final balanced equation. The species with higher value of reduction potential undergoes reduction while the species with lower value of reduction potential undergoes oxidation in comparison to other species. To determine: The balanced net ionic equation for the redox reaction between Ag 2 S and Aluminum metal for the production of Silver metal and Aluminum hydroxide.

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Chapter 18, Problem 18.96AP

(a)

Interpretation Introduction

Interpretation: The formation of Ag2S by the reaction between low concentrations of Hydrogen sulfide with silver metal in presence of air that leads to the tarnishing of Silver metal and presence of Aluminum metal in basic in Silver polish is given. Various questions based on these reactions are to be answered.

Concept introduction: In ion electron method or the half-reaction method the given equation is written in two parts, one is reduction half-reaction and the other is oxidation half-reaction. Both the reactions are separately balanced and then they are added to give the final balanced equation.

The species with higher value of reduction potential undergoes reduction while the species with lower value of reduction potential undergoes oxidation in comparison to other species.

To determine: The balanced net ionic equation for the redox reaction between Ag2S and Aluminum metal for the production of Silver metal and Aluminum hydroxide.

(b)

Interpretation Introduction

To determine: The value of E°cell for the reaction.

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