1) From a 1.015 g sample of a binary compound of calcium and bromine, there was obtained 0.2035 g of Ca. Calculate the mass percent for each element in the compound and determine its empirical formula.
2) A substance is found experimentally to be 59.6% chlorine and 40.4% oxygen.
(a) What is the empirical formula?
(b) If the molar mass of the chlorine oxide is 356.7 g/mol, what is the molecular formula of the compound?