Chapter 15, Problem 15.87CQ

Interpretation Introduction

(a)

Interpretation The given voltaic cell should be drawn.

  $\text{Ni}\left(\text{s}\right)\left|{\text{Ni}}^{\text{2+}}\left(\text{aq}\right)\right|\left|{\text{Ag}}^{\text{+}}\left(\text{aq}\right)\right|\text{Ag}\left(\text{s}\right)$

Concept Introduction:

An electrochemical cell is also known as a voltaic cell in which chemical energy is converted to electrical energy. A voltaic cell has a cathode and an anode. At anode oxidation takes place and at cathode, reduction takes place. The flow of electrons takes place from anode to cathode. Salt bridge is used for flow of ions in between the two electrolytes, this is important to balance the cell neutrality.

Interpretation Introduction

(b)

Interpretation:

The anode for the given voltaic cell should be determined.

Concept Introduction:

An electrochemical cell is also known as a voltaic cell in which chemical energy is converted to electrical energy. A voltaic cell has a cathode and an anode. At anode oxidation takes place and at cathode, reduction takes place. The flow of electrons takes place from anode to cathode. Salt bridge is used for flow of ions in between the two electrolytes, this is important to balance the cell neutrality.

Interpretation Introduction

(c)

Interpretation:

The cathode should be determined for the given voltaic cell.

Concept Introduction:

An electrochemical cell is also known as a voltaic cell in which chemical energy is converted to electrical energy. A voltaic cell has a cathode and an anode. At anode oxidation takes place and at cathode, reduction takes place. The flow of electrons takes place from anode to cathode. Salt bridge is used for flow of ions in between the two electrolytes, this is important to balance the cell neutrality.

Interpretation Introduction

(d)

Interpretation:

The half reaction that takes place at the anode should be determined.

Concept Introduction:

An electrochemical cell is also known as a voltaic cell in which chemical energy is converted to electrical energy. A voltaic cell has a cathode and an anode. At anode oxidation takes place and at cathode, reduction takes place. The flow of electrons takes place from anode to cathode. Salt bridge is used for flow of ions in between the two electrolytes, this is important to balance the cell neutrality.

Interpretation Introduction

(e)

Interpretation:

The half reaction that takes place at the cathode should be determined.

Concept Introduction:

An electrochemical cell is also known as a voltaic cell in which chemical energy is converted to electrical energy. A voltaic cell has a cathode and an anode. At anode oxidation takes place and at cathode, reduction takes place. The flow of electrons takes place from anode to cathode. Salt bridge is used for flow of ions in between the two electrolytes, this is important to balance the cell neutrality.

Interpretation Introduction

(f)

Interpretation:

The overall reaction for the cell should be determined.

Concept Introduction:

The overall reaction of the cell is obtained by adding the reduction and oxidation half reactions in such a way that there is no electron in the overall cell reaction.