minimom43 minimom43 31-01-2017 Chemistry contestada 4 FeCr2O7 + 8 K2CO3 + O2. = 2 Fe2O3 + 8 K2CrO4 + 8 CO2 based on this formula a) how many grams of O2 are required to produce 44.0grams of CO2? And b) how many moles of Fe2O3 will be produced from 6.8 moles of K2CO3?