Created from Youtube video: https://www.youtube.com/watch?v=zMLNHm4nUCQvideoConcepts covered:electrolysis, hydrogen gas, oxygen gas, electrodes, oxidation-reduction
The video explains the process of electrolysis of water, where electricity is used to decompose water into hydrogen and oxygen gases. It details the setup involving a beaker, electrodes, and a battery, and describes the oxidation and reduction reactions occurring at the anode and cathode, respectively.
Table of Contents1.Electrolysis of Water: Process and Reactions2.Electrolysis of Water: Oxidation and Reduction Reactions
chapter
1
Electrolysis of Water: Process and Reactions
Concepts covered:electrolysis, water, electrodes, oxidation, reduction
This chapter explains the process of electrolysis of water, where electricity is used to break down water into hydrogen and oxygen gases. It details the setup involving a beaker, electrodes, and a battery, and describes the oxidation and reduction reactions occurring at the anode and cathode, respectively.
Question 1
Electrolysis of water produces hydrogen at the anode.
Question 2
What is electrolysis used for?
Question 3
Where does oxidation occur in an electrochemical cell?
Question 4
CASE STUDY: You are setting up an electrolysis experiment with water and sodium hydroxide. You have connected the electrodes to a 9V battery and filled the beaker with the solution.
All of the following are correct applications except...
Question 5
CASE STUDY: You are troubleshooting an electrolysis setup where no gas is being produced. You suspect an issue with the electrodes.
Select three correct troubleshooting steps out of the following...
chapter
2
Electrolysis of Water: Oxidation and Reduction Reactions
Concepts covered:electrolysis, oxidation, reduction, cell potential, non-spontaneous
This chapter explains the electrochemical process of water electrolysis, detailing the oxidation and reduction reactions at the anode and cathode, respectively. It highlights the non-spontaneous nature of water decomposition and contrasts it with the spontaneous formation of water from hydrogen and oxygen gases.
Question 6
Electrolysis of water is a spontaneous process.
Question 7
What happens to water at the cathode?
Question 8
Where does oxidation occur in electrolysis?
Question 9
CASE STUDY: A company is using electrolysis to decompose water. They notice the reaction is not proceeding. They suspect the voltage applied is too low.
All of the following could solve the issue except:
Question 10
CASE STUDY: A scientist is comparing the electrolysis of water with the combustion of hydrogen. They need to identify key differences.
Select three correct differences out of the following:
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