Experiment 3
The Stoichiometry and Reactions of Some Copper Compounds

WASTE DOSPOSAL

Dispose of your acid/base waste (Steps III and V) in the two waste containers labeled "Expt. 3, Step III acid/base waste" and " Expt. 3, Step V acid/base waste". Acids and bases must be neutralized before they can be disposed of. Acids and bases that also contain certain ions, as in step V with zinc ions, must also be handled separately. Pour your acetone waste (Step V) in the container labeled "waste acetone." Organic solvents like acetone must also be handled separately. DO NOT MIX THESE DIFFERENT WASTE SOLUTIONS! MAKE SURE EACH OF THE THREE DIFFERENT WASTE SOLUTIONS IS PUT IN THE CORRECT WASTE CONTAINER FOR THAT SOLUTION!

CLEAN-UP

Place your beaker in the location designated by your instructor. Wash and replace your glassware in your student locker. Replace the iron ring, wire gauze, Bunsen burner, striker, etc. in the proper desktop kit. Wipe your lab bench with a wet sponge. Wash your hands before leaving lab.