a. What isthe percent by mass of water in iron (II) sulfate heptahydrate, FeSO4 • 7H2O  (or what percent of the molar mass of FeSO4 •7H2O is due to the waters of crystallization)?     b. What mass due to waters of crystallization is present in a 3.38‐ g sample of FeSO 4 •7H2 O?

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A: % by mass of Na2SO4.10H2O = mass of Na2SO4.10H2Ototal mass of mixture * 100and1 mole Na2SO4.10H2O…

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Q: To a crucible and cover weighing 33.392 g is added a sample of a copper (II) chloride hydrate (CuCl2…

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Q: If you mass 0.430 g of Co(NO3)2 x 6H2O and dissolve it in water, what further information would you…

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Q: 018302 001608 3. (part a). You are given 0.104 g of a sample of KwFex(C204)y(H₂O) z. In the…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.