Final answer:
The chemical formula for the calcium chloride hydrate, determined by the mass lost upon heating, is CaCl2·2H2O, which is called calcium chloride dihydrate.
Step-by-step explanation:
The chemical formula for the calcium chloride hydrate can be determined by comparing the mass of the hydrate before and after heating. Given that 1.470g of calcium chloride hydrate loses water to become 1.110g of anhydrous calcium chloride, we can calculate the mass of water lost during heating, which is 1.470g - 1.110g = 0.360g. The molar mass of anhydrous calcium chloride (CaCl2) is 110.98 g/mol.
To find the moles of anhydrous calcium chloride, we divide its mass by the molar mass: 1.110 g / 110.98 g/mol = 0.010 moles. The molar mass of water (H2O) is 18.015 g/mol. Dividing the mass of water lost by the molar mass of water gives us the moles of water: 0.360 g / 18.015 g/mol = 0.020 moles.
Since there are twice as many moles of water as moles of calcium chloride, the ratio is 1:2. Thus, the chemical formula for the hydrate is CaCl2·2H2O, and its name is calcium chloride dihydrate.