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Epsom salts is a hydrated ionic compound with the following formula: MgSO4xH2O A sample of Epsom salts with a mass of 4.93 g is heated

Epsom salts is a hydrated ionic compound with the following formula: MgSO4⋅xH2O A sample of Epsom salts with a mass of 4.93 g is heated to drive off the water of hydration. The mass of the sample after complete dehydration is 2.41 g.

Find the number of waters of hydration (x) in Epsom salts.

Express your answer as an integer.

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