AGLV8 PILHA DE DANIELL

Algetec

About this app

1. OBJECTIVE
The experiment exploits a galvanic battery known as a Daniell cell. In this battery, oxidation and reduction reactions occur spontaneously, generating an electric current in the battery circuit.


At the end of this experiment you should be able to:

identify oxidation and reduction reactions;

describe the functioning of a galvanic battery;

differentiate cathode and anode;

characterize spontaneous oxidation and reduction reactions.

2. WHERE TO USE THESE CONCEPTS?
The concepts covered in this practice show reactions that occur in our daily lives. The Daniell cell illustrates a spontaneous process of converting chemical energy into electrical energy that is very common in batteries and commercial cells.


3. THE EXPERIMENT
This experiment uses two beakers with a volumetric capacity of 50 mL, a Petri dish, copper, zinc and iron plates. The filter paper moistened in a solution will serve as a salt bridge for the operation of the battery in question and a multimeter for measuring voltage and current. Different solutions will be used.


4. SECURITY
The lab coat and gloves will be used in the experiment.


5. SCENARIO
The experiment is carried out on a conventional bench containing drawers, cabinets and a solution shelf. You must assemble a Daniell stack. To do so, you must select the materials and accessories in the drawers and cabinet. On the shelf you must identify and select the solutions that will be needed for the experiment.