Chapter 15, Problem 15.53AUTC

Interpretation Introduction

(a)

Interpretation:

The oxidation half reaction in the given voltaic cell

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed.

Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell.

It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

When these half cells containing the strip of the metal and the metal ion solution are placed in separate beakers, flow of electrons takes place from one half cell to other and these two half cells are connected by a salt bridge. The strip of the metal in each of these half cells is known as electrode and this strip is in contact with the metal ion solution. Oxidation takes place at the electrode known as anode whereas reduction reaction takes place at cathode. Oxidation means loss of electrons while reduction means gain of electrons. Direction of a spontaneous redox reaction is determined with the help of activity series where the metals which lose electrons easily are placed at the top and the metals that are unable to lose electrons easily are placed at bottom of the series.

Half cell reaction is a component of a given redox reaction. It is either the oxidation or reduction component of the given redox reaction.

Interpretation Introduction

(b)

Interpretation:

The reduction half reaction in the given voltaic cell should be determined.

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed.

Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell.

It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

When these half cells containing the strip of the metal and the metal ion solution are placed in separate beakers, flow of electrons takes place from one half cell to other and these two half cells are connected by a salt bridge. The strip of the metal in each of these half cells is known as electrode and this strip is in contact with the metal ion solution. Oxidation takes place at the electrode known as anode whereas reduction reaction takes place at cathode. Oxidation means loss of electrons while reduction means gain of electrons. Direction of a spontaneous redox reaction is determined with the help of activity series where the metals which lose electrons easily are placed at the top and the metals that are unable to lose electrons easily are placed at bottom of the series.

Half cell reaction is a component of a given redox reaction. It is either the oxidation or reduction component of the given redox reaction.

Interpretation Introduction

(c)

Interpretation:

To determine the metal which act as an anode in the given voltaic cell.

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed.

Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell.

It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

When these half cells containing the strip of the metal and the metal ion solution are placed in separate beakers, flow of electrons takes place from one half cell to other and these two half cells are connected by a salt bridge. The strip of the metal in each of these half cells is known as electrode and this strip is in contact with the metal ion solution. Oxidation takes place at the electrode known as anode whereas reduction reaction takes place at cathode. Oxidation means loss of electrons while reduction means gain of electrons. Direction of a spontaneous redox reaction is determined with the help of activity series where the metals which lose electrons easily are placed at the top and the metals that are unable to lose electrons easily are placed at bottom of the series.

Interpretation Introduction

(d)

Interpretation:

To determine the metal which act as a cathode in the given voltaic cell.

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed.

Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell.

It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

When these half cells containing the strip of the metal and the metal ion solution are placed in separate beakers, flow of electrons takes place from one half cell to other and these two half cells are connected by a salt bridge. The strip of the metal in each of these half cells is known as electrode and this strip is in contact with the metal ion solution. Oxidation takes place at the electrode known as anode whereas reduction reaction takes place at cathode. Oxidation means loss of electrons while reduction means gain of electrons. Direction of a spontaneous redox reaction is determined with the help of activity series where the metals which lose electrons easily are placed at the top and the metals that are unable to lose electrons easily are placed at bottom of the series.

Interpretation Introduction

(e)

Interpretation:

The direction of electron flow in the given voltaic cell should be determined.

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed.

Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell.

It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

When these half cells containing the strip of the metal and the metal ion solution are placed in separate beakers, flow of electrons takes place from one half cell to other and these two half cells are connected by a salt bridge. The strip of the metal in each of these half cells is known as electrode and this strip is in contact with the metal ion solution. Oxidation takes place at the electrode known as anode whereas reduction reaction takes place at cathode. Oxidation means loss of electrons while reduction means gain of electrons. Direction of a spontaneous redox reaction is determined with the help of activity series where the metals which lose electrons easily are placed at the top and the metals that are unable to lose electrons easily are placed at bottom of the series.

Interpretation Introduction

(f)

Interpretation:

To determine the overall cell reaction.

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed.

Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell.

It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

When these half cells containing the strip of the metal and the metal ion solution are placed in separate beakers, flow of electrons takes place from one half cell to other and these two half cells are connected by a salt bridge. The strip of the metal in each of these half cells is known as electrode and this strip is in contact with the metal ion solution. Oxidation takes place at the electrode known as anode whereas reduction reaction takes place at cathode.

While writing the overall cell reaction one assumes that the reaction will be spontaneous when right hand half reaction is the reduction reaction while left hand side reaction is the oxidation reaction.

Interpretation Introduction

(g)

Interpretation:

To determine the shorthand cell notation.

Concept Introduction:

A redox reaction is meant to take place when the oxidation states of the atoms present in a chemical species are changed. Electrical energy can be generated through spontaneous oxidation-reduction reaction by making use of apparatus known as voltaic cell. It contains two half cells, at one of the half cell oxidation takes place and at other half cell reduction takes place.

Cell notation is the shorthand method writing a given chemical reaction that takes place in an electrochemical cell.