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From your data, determine the mass of the water present in your hydrate, the number of...

From your data, determine the mass of the water present in your hydrate, the number of moles of water present in your hydrate, and the number of moles of compound present in your hydrate. Determine the formula of your hydrate.

Data collected:
mass of crucible 19.214g
mass of crucible and unknown hydrate: 20.208g
mass of crucible after heating w/ hydrate: 19.701
mass of hydrate: 0.994g
formula of compound that forms hydrate: MgSO4 . nH2O


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