1. The analysis of a compound gives it composition as 31.6%K , 29.3%CCCL, and 39.1% oxygen . Determine the empirical formula of the compound.
2. The analysis ofa sample of a hydrate of thorium sulfate revealed it contined 0.007054 mol Th(SO4)2 and 0.02822 mol of water. Determine the empirical formula of the hydrate.
3. The analysis of 4.017g of a strontium iodide hydrate revealed it contained 3.041g of anhydrous strontium iodide and thus 0.976g of water . Determine the formula of the hydrate.