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You don't need a balanced equation. 1 mole of Fe = 56 g 1 mole of S. = 32 g 1 mole of O. = 16 g 1 mole of. xH 2 O. Consider the hydrate FeSO4 • 7H2O. You need the mass of FeSo4•7H2O. g/mol. What is the molar mass of this hydrate? Calculations: Formula: FeSO4.7h2o Molar Mass: 277.9996 g/mol 1g=3.59712747788126E-03 mol Percent composition (by mass): Element Count Atom Mass %(by mass) Molar Mass: 278.02 g/mol CAS #: 7782-63-0 Hill Formula: FeO₄S * 7H₂O EC Number: 231-753-5 Chemical Formula: FeSO₄ * 7H₂O Grade: ACS,ISO,Reag. Consider the hydrate FeSO4•7H2O what is the molar mass of this hydrate? These compounds exist most commonly as the heptahydrate (x = 7) but are known for several values of x.The hydrated form is used medically to treat iron deficiency, and also for industrial applications. xH2O which was subsequently ignited to produce 0.300 g of Fe2O3. Ph Eur Ph Eur 103965 Answers: 3 Get. g/mol What is the molar mass of the anhydrous salt FeSO4? a. Cobalt(II) Sulfate Heptahydrate CoSO4.7H2O Molar Mass, Molecular Weight DON'T look for the equation. What mass due to waters of crystallization is present in a 3.38‐ g sample of FeSO 4 •7H2 O? b. 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)? Massa molar of FeSO4*7H2O Massa Molar, Peso Molecular e … This problem is to apply Roult’s Law. First, it is necessary to have the molar mass of FeSO4 • 7H2O and molar mass of compound without water FeSO4. Look at the below formulae below and try again. g/mol What is the molar mass of water in the hydrate? It's not necessary. Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 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