Problem:
How is hydrogen gas prepared in the lab?
Procedure:
1. Place 5 pieces of zinc metal in the bottom of a large test tube.
2. Cover the zinc metal with strong hydrochloric acid.
3. Place a 2nd test tube on the top of the test tube with the metal and acid in it.
4. After 30 seconds, ignite the hydrogen gas in the upper test tube.
Picture:
Label all parts of the laboratory equipment setup.
Chemical Reaction:
Zinc + hydrochloric acid ---> zinc chloride + hydrogen
Zn + 2HCl ---> ZnCl2 + H2
Safety Notes:
1. Wear saftey glasses
2. Wear an apron
3. Do not get acid on skin or clothing
Conclusion:
Describe what happened in this experiment