@ 0.154g of organic compound Containing carbon, Hydrogen and oxygen only, on ignition in oxygen gave 0.2199 of carbon (iv) oxide and 0.135g of water. If the Vapour dansity of the compound is 31 @ find the empirical formula (b) it’s molecular formula

b Calculate the number of grammes of substance present in 3.01 + 1022 atoms of tetraoxosulphate (vi) acid

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