One of the hydrates of FeCO3 is iron (II) carbonate monohydrate. A 50.3 gram sample of FeCO3.H₂O was heated thoroughly in a

Question

One of the hydrates of FeCO3 is iron (II) carbonate monohydrate.
A 50.3 gram sample of FeCO3.H₂O was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, how many grams of the anhydrous compound remained?

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