Metal, heavy metal, death metal, nu-metal...how do you differentiate between them? Did I leave any out?
let M be the metal ans as sulfide has an oxidation state of -2, then the metal sulfide would have a chemical formula of MS. The reaction is shown below. 2MS (s) + 3O2 ----------> 2MO + 2SO2 We know that 1 mole of metal sulphide will produce one mole of metal oxide. Let x be the molar mass of the metal we have that the molar mass of the metal sulfide is x + 32. The molar mass of the metal oxide is x +16. The number of moles of metal sulphide is 1.2/(x +32) The number of moles of metal oxide is 0.728/(x+16) As one mole of metal sulfide forms one mole of metal oxide, then 1.2/(x+32) = 0.728/(x+16) = 1.2 (x+ 16) = 0.728 (x+ 32) = 1.2x + 19.2 = 0.728x + 23.296 0.472x = 4.096 x= 4.096/0.472= 8.678g/mol.
