Problem- a 32627 g sample of a hydrated metal sulfate, Ask an Expert

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Problem- A 3.2627 g sample of a hydrated metal sulfate FeSO4.xH2O is heated in a crucible for 10 minutes. After heating, a student cooled the crucible and the sample to room temperature and then reweighed. The mass of the sample after heating is 2.9167 g. The metal was then isolated and was found to have a mass of 1.0723 g. How many moles of water are in the hydrated salt. Write the formula of the hydrated salt. The molar masses of Fe, SO42-, and H2O are 55.85, 96.07 and 18.02 g/mol respectively.

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