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In the general formula for a hydrate, salt.XH20, what does the X represent?

User Dspeyer
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So,

In the general formula for a hydrate:


\text{salt}\mathrm{}XH_2O

"X" represents the number of moles of water present as hydrate in the salt.

For example, copper sulfate pentahydrate means x = 5 moles of water present as a hydrate.

User Kortney
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