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Chemical Reaction:
Procedure
1. Obtain a 100.ml beaker, glass stirring rod and thermometer.
2. Using scale on side of beaker add 40.ml of DI water to beaker.
2. Using a chemical transfer piece of paper (non-ink side up), obtain one teaspoon (just a level amount) of copper (II) chloride solid.
3. Record observations of the solid.
4. Place the solid in the water (do not stir). Record observations.
5. Dissolve solid by stirring. (glass rod will not have chemical on it so does not touch bench top). Record observations.
6. Using a thermometer, record the temperature.
7. Obtain a piece of aluminum foil (Al solid) and put in a loose ball (not tight!!!)
8. Add the Al foil to the solution and use a glass stirring rod to help Al and solution interact.
9. Record the temperature during the chemical reaction.
10. Make filtering apparatus with funnel, flask and filter paper.
11. Filter the material in the beaker.
12. Record observation of the filtrate and filtrant.
13. After observing pour the filtrate down the sink and put the filter paper and filtrant in the "special bucket".
Data Table
Questions
1. Which step in the lab were physical changes and which were chemical reactions?
2. Which observation was a quantitative observation of a chemical reaction?
3. What did you think happened in the second part of the lab (i.e. your interpretation)?