How many grams of sulfuric acid, H2SO4, can be obtained from 578 grams of iron ore if the ore is 76.0% by mass FeS? The reactions involved are given below. Each reaction is 92.0% efficient.
4 FeS + 7O2→ 2 Fe2O3 + 4 SO2
2 SO2 + O2→ 2 SO3
SO3 + H2O → H2SO4
◦ 502 g
◦ 307 g
◦ 382 g
◦ 95.5 g
◦ 629 g