Answer to Question #208762 in General Chemistry for James

Question

When a 1.0g sample of copper (II) sulphate pentahydrate was heated so that the waters of hydration were driven off, the mass of the anhydrous salt remaining was found to be 0.6390g. What is the experimental value of the percent water of hydration? Give the formula for the sample above and also the heating process from the hydrated form to the anhydrous form

Answer 1

Hydrates are compounds that contain water with a definite mass in the form of water in their molecular formula. These compounds often come in the form of a crystal which can then be heated in order to remove the water in the form of steam. An anhydrate is the substance that remains after the water from a hydrate has been removed through heating.