Answer the following questions about the reaction above. a) How many moles of O2​ need to react in order to form 1.50 mol of Fe2​O3​ ? b) How many moles of Fe2​O3​ will form when 1.50 mol of O2​ reacts? c) What is the mass of 1.50 mol of Fe2​O3​ ? d) How many moles of O2​ would weigh 75.0 g ?