Lab documentation
Electrolysis
In this experiment you will produce hydrogen and oxygen using a reversible fuel
cell. You will observe the volume of hydrogen produced compared to the volume of
oxygen produced.
1. What is the chemical symbol for hydrogen?
2. What is the chemical symbol for oxygen?
3. When you use electrolysis to separate water, what do you predict the ratio of
hydrogen to oxygen will be?
Time Elapsed
0.5 minute
1.0 minute
1.5 minutes
2.0 minutes
2.5 minutes
3.0 minutes
3.5 minutes
4.0 minutes
4.5 minutes
5.0 minutes
Hydrogen (ml)
Oxygen (ml)
4. Which gas was produced more quickly?
5. What is the ratio of hydrogen to oxygen in water?
6. What is the chemical symbol for water?
What does that symbol mean?
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Ratio of H to O