Relationships Used

• The main conversion factors are the stoichiometric relationships between moles of each reactant and moles of copper.
• The other conversion factors are the molar masses of copper(I) oxide, carbon, and copper.

1 mol Cu2O : 2 mol Cu

1 mol C : 2 mol Cu

Molar mass Cu2O = 143.10 g/mol

Molar mass C = 12.01 g/mol

Molar mass Cu = 63.55 g/mol