Afeed solution of 10,000 lbm at 130°f containing 47.0 lb feso4/100 lb water is cooled to 80°f, where feso4 7h20 crystals are removed. the solubility of the salt is 30.5 lb feso4/100 lb water. the average heat capacity of the feed solution is 0.70 btu/lbm- f. the heat of solution at 18°c is -28.47 btu/lbm feso4 7h20 crystals. if 5% of the water in the feed is vaporized, calculate the yield of crystals and the amount of heat removed from the crystallizer.

law of conservation of matter

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the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.