There are two steps in the extraction of copper metal from

Last updated: 8/5/2022

There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper(I) sulfide and oxygen react to form copper(1) oxide and sulfur dioxide: 2Cu₂S (s) + 30₂ (8) 2 Cu₂O(s) + 2 SO₂ (g) In the second step, copper(I) oxide and carbon react to form copper and carbon monoxide: Cu₂O(s) + C(s) 2Cu(s) + CO (g) - Suppose the yield of the first step is 89.% and the yield of the second step is 90.%. Calculate the mass of oxygen required to make 9.0 kg of copper. Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits.