Problem: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration). A 40.39 gram sample of a hydrate of Ca(NO3)2 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 28.07 grams of the anhydrous compound remained. What is the formula of the hydrate? Use a period instead of a dot in the formula of the hydrate.

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It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration). 

A 40.39 gram sample of a hydrate of Ca(NO3)2 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 28.07 grams of the anhydrous compound remained. What is the formula of the hydrate? 

Use a period instead of a dot in the formula of the hydrate.

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Our tutors have indicated that to solve this problem you will need to apply the Naming Ionic Hydrates concept. You can view video lessons to learn Naming Ionic Hydrates. Or if you need more Naming Ionic Hydrates practice, you can also practice Naming Ionic Hydrates practice problems.

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