Ahydrate of copper (ii) chloride has the following formula: cucl2 - x h2o. the water in a 3.41-g sample of the hydrate was driven off by heating. the remaining sample had a mass of 2.69 g . find the number of waters of hydration (x) in the hydrate.

x=2 (

Explanation:

Mass of is the mass of remaining sample, because it is a product of loss of drying from initial sample. This means that the mass of water is the mass has been lost.

after fing the masses of and water you must to find the amount of moles in both cases.

Now you must to find the ratio between both molecules:

So the water is two times copper(II) chloride. (

the answer is learned