Chapter 17, Problem 70E

(a)

Interpretation Introduction

Interpretation:

The set up of a concentration cell is given. The value of cell potential at $25°\text{C}$ for different concentration of ${\text{Ni}}^{2+}$ in the compartment on the right is to be calculated.

Concept introduction:

When the transport of substance occurs from one half cell to another due to difference in concentration gradient there occurs generation of current. This leads to the formation of concentration cells.

They are of two types,

• Electrode concentration cell
• Electrolyte concentration cell

The difference in ion concentration in different compartments decides the direction of electron flow and helps in assigning the position of anode and cathode.

To determine: The cell potential at the $1.0\text{M}$ concentration of ${\text{Ag}}^{+}$ in right compartment and the cathode and anode and the direction of electron flow.

(b)

Interpretation Introduction

Interpretation:

The set up of a concentration cell is given. The value of cell potential at $25°\text{C}$ for different concentration of ${\text{Ni}}^{2+}$ in the compartment on the right is to be calculated.

Concept introduction:

When the transport of substance occurs from one half cell to another due to difference in concentration gradient there occurs generation of current. This leads to the formation of concentration cells.

They are of two types,

• Electrode concentration cell
• Electrolyte concentration cell

The difference in ion concentration in different compartments decides the direction of electron flow and helps in assigning the position of anode and cathode.

To determine: The cell potential at $2.0\text{M}$ concentration of ${\text{Ni}}^{2+}$ in right compartment and the cathode and anode and the direction of electron flow.

(c)

Interpretation Introduction

Interpretation:

The set up of a concentration cell is given. The value of cell potential at $25°\text{C}$ for different concentration of ${\text{Ni}}^{2+}$ in the compartment on the right is to be calculated.

Concept introduction:

When the transport of substance occurs from one half cell to another due to difference in concentration gradient there occurs generation of current. This leads to the formation of concentration cells.

They are of two types,

• Electrode concentration cell
• Electrolyte concentration cell

The difference in ion concentration in different compartments decides the direction of electron flow and helps in assigning the position of anode and cathode.

To determine: The cell potential at $0.10\text{M}$ concentration of ${\text{Ni}}^{2+}$ in right compartment and the cathode and anode and the direction of electron flow.

(d)

Interpretation Introduction

Interpretation:

The set up of a concentration cell is given. The value of cell potential at $25°\text{C}$ for different concentration of ${\text{Ni}}^{2+}$ in the compartment on the right is to be calculated.

Concept introduction:

When the transport of substance occurs from one half cell to another due to difference in concentration gradient there occurs generation of current. This leads to the formation of concentration cells.

They are of two types,

• Electrode concentration cell
• Electrolyte concentration cell

The difference in ion concentration in different compartments decides the direction of electron flow and helps in assigning the position of anode and cathode.

To determine: The cell potential at $4.0\times {10}^{-5}\text{M}$ concentration of ${\text{Ni}}^{2+}$ in right compartment and the cathode and anode and the direction of electron flow.

(e)

Interpretation Introduction

Interpretation:

The set up of a concentration cell is given. The value of cell potential at $25°\text{C}$ for different concentration of ${\text{Ni}}^{2+}$ in the compartment on the right is to be calculated.

Concept introduction:

When the transport of substance occurs from one half cell to another due to difference in concentration gradient there occurs generation of current. This leads to the formation of concentration cells.

They are of two types,

• Electrode concentration cell
• Electrolyte concentration cell

The difference in ion concentration in different compartments decides the direction of electron flow and helps in assigning the position of anode and cathode.

To determine: The cell potential when both solutions are $2.5\text{M}$ in ${\text{Ni}}^{2+}$.