A crystallizer is to produce 500 lbs/h of copperas (FESO4 · 7 H20, 277.85) crystals by cooling a saturated solution which is fed to the crystallizer at 120°F. The slurry leaving the crystallizer is at 80°F using cooling water. Solubility Data: 120°F : 140 parts copperas / 100 parts water 74 parts copperas / 100 parts water Calculate the amount of wet crop and mother liquor produced. 80°F

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