Nung m gam hon hop X gom FeS va FeS2 trong mot binh kin chua khong khi ( gom 20% the tich O2 va 80% the tich N2) den khi phan ung xay ra hoan toan,, thu duoc chatran va hon hop khi Y co thanh phan the tich N2=84,77%, SO2=10,6%,con lai la O2.thanh phan % theo khoi luong cua FeS trong X la...