a) 4FeS 2 +110 2 2Fe 2 O 3 +8SO 2 If 60g pyrites are roasted, calculate i) Volume of oxygen consumed at STP ii) Weight of ferric oxide formed iii) Weight of sulphurdioxide evolved during this process (FeS 2 =120 , FeO 3 =160) b) What volume of oxygen would be required for the complete combustion of 100 ltr of ethane according to the following equation 2C 2 H 6 +7O 2 4CO 2 +6H 2 O c) How many total number of atom in 0.5 mole S*O_{2} ?
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