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Chemistry, 24.12.2020 04:30 mella98

A 90.00 g sample of Na₂CO₃*xH₂O is heated until all of the water is driven off, forming 32.28 g of the anhydrous salt, Na₂CO₃. What is the percent by mass of H₂O in the hydrated compound, Na₂CO₃*xH₂O? A) 14.53% H₂O
B) 37.03% H₂O
C) 64.13% H₂O
D) 68.85% H₂O

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