Bornite (Cu3FeS3) is a copper ore used in the production of copper.
When heated, the following (unbalanced) reaction occurs:
Cu3FeS3(s) + O2(g) → Cu(s)+ FeO(s) + SO2(g)
If 2.50 kg of bornite is reacted with excess O2and the process has an 82.5% yield of copper, how much copper is produced (in kg)?