Answer:
257.6 grams
Step-by-step explanation:
first write the formula: 4Fe + 3O2 -> 2Fe2O3
Fe molar mass is 55.8
180/55.8 = 3.226 mols
devide 3.226 by 4, then multiply by 2 which gives us 1.61 mols Fe2O3
Fe2O3 molar mass is 160
1.61 mols * 160 = 257.6 grams