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Determination of the % and the number of moles of water in a hydrate

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Two problems:

1. CuSO4.5H2O was heated such that the waters of hydration were driven off leaving the anhydrous salt. Calculate the percent change in mass as a result of dehydration.

2. When conducting the experiment to drive of the waters of hydration in alum to yield a less hydrous salt, Would it be more difficult to do on a very hot and humid day in August? Why or why not?

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Solution Summary

The solution solves two problems. The first calculates the percent change in a mass when dehydrated. The second is to discuss the effects of different temperatures on this dehydration.

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1. CuSO4.5H2O was heated such that the waters of hydration were driven off leaving the anhydrous salt. Calculate the percent change in mass as a result of dehydration.
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