Question

how many moles of cuo can be produced from 0.900 moles of Cu2O in the following reaction: 3Cu2O + O2--> 4 CuO

Answer 1

Answer:
             1.8 mol of CuO

Solution:

The balanced chemical equation is as follow,

                               2 Cu₂O  +  O₂     →     4 CuO

According to equation,

                     2 moles of Cu₂O produced  =  4 moles of CuO
So,
          0.900 moles of Cu₂O will produce  =  X moles of CuO

Solving for X,
                     X  =  (0.900 mol × 4 mol) ÷ 2 mol

                     X  =  1.8 mol of CuO