1- How many moles of O2 are required for the complete reaction of 54.7 g of C2H4 to form CO2 and H2O?
2- Fe3O4 reacts with CO according to the equation
Fe3O4 + 4CO => 4CO2 + 3Fe
If 478.9 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced?