Electro chem, basic concept problem

In summary, electrochemistry is the study of chemical reactions involving the transfer of electrons and is important in understanding and controlling various natural and industrial processes. Its basic concepts include redox reactions, electrode potential, electrolytes, and Faraday's laws of electrolysis. In batteries, electrochemistry is utilized to convert chemical energy into electrical energy through the use of two electrodes and an electrolyte. An oxidation-reduction reaction is a type of redox reaction in which electrons are transferred between substances. Galvanic cells use spontaneous redox reactions to generate electricity, while electrolytic cells use an external electric current to drive non-spontaneous reactions for processes like electroplating and electrolysis.
  • #1
geffman1
67
0
hey guys I've got another problem, any conceptual help and help would the questions would be greatfully apprectiated. thanks

Homework Statement



From a consideration of the data below determine which of the given species will oxidize Fe to Fe2+:
Data
Fe2+ + 2e- --> Fe; E° = -0.44 V
Zn2+ + 2e- --> Zn; E° = -0.76 V
Al3+ + 3e- --> Al: E° = -1.67 V
Mg2+ + 2e- --> Mg; E° = -2.28 V
Cu2+ + 2e- --> Cu; E° = +0.34 V

a. Zn2+

b. Al3+

c. Mg2+

d. Cu2+

e. none of these



[
 
Physics news on Phys.org
  • #2
d.) Arrange the values on a number line.
 

Related to Electro chem, basic concept problem

1. What is electrochemistry and why is it important?

Electrochemistry is the study of the chemical reactions that involve the transfer of electrons between substances. It is important because it helps us understand and control many natural and industrial processes, such as corrosion, energy storage, and metal plating.

2. What are the basic concepts of electrochemistry?

The basic concepts of electrochemistry include redox reactions, electrode potential, electrolytes, and Faraday's laws of electrolysis. Redox reactions involve the transfer of electrons between substances. Electrode potential is a measure of the tendency of a substance to gain or lose electrons. Electrolytes are substances that conduct electricity when dissolved in water. Faraday's laws describe the relationship between the amount of electricity passed through a substance and the amount of chemical change that occurs.

3. How is electrochemistry used in batteries?

Electrochemistry is used in batteries to convert chemical energy into electrical energy. Batteries contain two electrodes, an anode and a cathode, which are connected by an electrolyte. Chemical reactions at the electrodes cause electrons to flow through the external circuit, producing an electrical current.

4. What is an oxidation-reduction (redox) reaction?

An oxidation-reduction (redox) reaction is a chemical reaction in which there is a transfer of electrons between two substances. One substance loses electrons (oxidation) and becomes more positive, while the other substance gains electrons (reduction) and becomes more negative.

5. What is the difference between a galvanic cell and an electrolytic cell?

A galvanic cell is a type of electrochemical cell that converts chemical energy into electrical energy. It uses a spontaneous redox reaction to generate an electric current. An electrolytic cell, on the other hand, uses an external electric current to drive a non-spontaneous redox reaction. It is used for processes such as electroplating and electrolysis.

Similar threads

Calculate Jones Reductor Equilibrium Constants @ 298.15 K
    • Biology and Chemistry Homework Help
Replies
1
Views
3K
Need help with electrochemistry lab
    • Biology and Chemistry Homework Help
Replies
6
Views
2K
Voltaric Cell/Cell Chemical Reaction
    • Biology and Chemistry Homework Help
Replies
12
Views
6K
Help with Electrochemistry Lab: Al+3, Cu+2, Fe+3, Zn+2, KNO3
    • Biology and Chemistry Homework Help
Replies
2
Views
2K
IB HL Chemistry Lab Suggestions
    • Chemistry
Replies
2
Views
15K

Hot Threads

Recent Insights

Back
Top