anzeller5409 anzeller5409 22-03-2024 Chemistry contestada A sample of hydrated cobalt (II) chloride (CoCl₂) has a mass of 5.22 g. When it is dehydrated, the anhydrous compound has a mass of 2.85 g. What is the correct chemical formula for the hydrate? 1. CoCl₂· 4H₂O 2. CoCl₂· 6H₂O 3. CoCl₂· 8H₂O