Post-Lab        FS98
Lab 423-Empirical Formula

Name:                                 Sect:                                     Date:

1.  Determine the empirical formula of the product formed when pure
copper is completely oxidized.  
Assume the only reaction is between the copper and the oxygen.
(2 pts.)

Weight of crucible and cover:  32.143 g
Weight of crucible, cover, and copper: 34.690 g
Weight of crucible, cover, and product: 35.011 g
























2.  Write the chemical equations for all reactions occurring in the
experiment done in lab.
Give the states of all reactants and products.
(3 pts.)