3) 6.000 g of a certain compound x, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molar mass of 56.1 g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured. 18.83 g of carbon dioxide and 7.707 g of water are formed as products. a) how much carbon, hydrogen and oxygen is in 6.000 g of compound x (10) b) determine the empirical formula of this compound. (8) c) determine the molecular formula (2)