The anode and the cathode in the experiment and the half reactions occurs at each electrode has to be determined. Concept introduction: Voltaic cell or Galvanic cell: The device to produce electricity by using chemical reactions . In these divces are redox chemical reactions are occured. A voltaic cell converts chemical energy into electrical energy. It consists of two half cells. Each half cell consists of a metal and a solution of a salt of metal. Two half cells are connected by salt bridge. The chemical reaction in the half cell is an oxidation reduction (redox)reactions. For example: Cell diagram of voltaic or galvanic cell is as follows. Salt bridge ↓ Cu(s)|Cu 2+ (aq) || Ag + (aq)|Ag(s) __ _ ↓ ↓ Half cell Half cell

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Chapter 19, Problem 94GQ

(a)

Interpretation Introduction

Interpretation:

The anode and the cathode in the experiment and the half reactions occurs at each electrode has to be determined.

Concept introduction:

Voltaic cell or Galvanic cell:

The device to produce electricity by using chemical reactions. In these divces are redox chemical reactions are occured.

A voltaic cell converts chemical energy into electrical energy.

It consists of two half cells. Each half cell consists of a metal and a solution of a salt of metal. Two half cells are connected by salt bridge.

The chemical reaction in the half cell is an oxidation reduction (redox)reactions.

For example:

Cell diagram of voltaic or galvanic cell is as follows.

Salt bridge ↓Cu(s)|Cu2+(aq) || Ag+(aq)|Ag(s)__ _ ↓ ↓ Half cell Half cell

(b)

Interpretation Introduction

Interpretation:

The number of kilowatt –hours (kWh) of energy required to carry out the electrolysis has to be determined.

Concept introduction:

Voltaic cell or Galvanic cell:

The device to produce electricity by using chemical reactions. In these divces are redox chemical reactions are occured.

A voltaic cell converts chemical energy into electrical energy.

It consists of two half cells. Each half cell consists of a metal and a solution of a salt of metal. Two half cells are connected by salt bridge.

The chemical reaction in the half cell is an oxidation reduction (redox)reactions.

For example:

Cell diagram of voltaic or galvanic cell is as follows.

Salt bridge ↓Cu(s)|Cu2+(aq) || Ag+(aq)|Ag(s)__ _ ↓ ↓ Half cell Half cell

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