Five hundred twenty kilograms of aqueous solution containing 185 kg of dissolved MgSO4 is fed to a crystallizer wherein 80% of the dissolved salt crystallizes out as MgSO4 · 6H2O. The solubility of MgSO4 in the solution leaving the crystallizer is 20 g MgSO4 per 100 g H2O. A. How many kilograms of the hexahydrate salt crystals are obtained from the crystallizer? B. How many kilograms of water is evaporated in the process?

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