Experiment 4: Synthesis of a Compound General Chemistry I and II Lab Manual Dakota State University Page 79 of 232 vacuum is drawn. You have just built a personal fume hood. Check with your instructor to be sure it has been constructed correctly, and remember, it will only work if it is directly over (in physical contact) with the container. Procedure: WARNING: This is a hazardous experiment; be sure to follow ALL safety instructions! Measure out about 0.5 gram of aluminium pieces. It is not important to have exactly one gram, but it is important to know exactly how much you do have. It is better to have slightly more than one gram than slightly less because of significant figures. Place these pieces into a 50 mL beaker; add about 5 mL of water, and CAREFULLY add 4.0 mL of concentrated sulfuric acid. Place the beaker on an iron ring with a wire mesh and lower the inverted funnel over it. Heat gently with a Bunsen burner, bringing the solution to a gentle boil.
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