Molecular weight calculation: 55.845 + (14.0067 + 15.9994*3)*2 It is insoluable in water. Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all … Molar Mass: 150.8164. ››More information on molar mass and molecular weight. Molar mass of Fe(NO3)2 = 179.8548 g/mol This compound is also known as Iron(II) Nitrate.. The molar mass of hemoglobin is approximately 65 000 g/mol. Iron (Fe - Standard atomic weight), molar mass. The only difference between an Fe atom and an Fe³⁺ ion is three electrons. This gives a calculated molar mass of 65 495 g/mol. Iron (Ferrum or Fe) is a chemical element with atomic number 26. ››Fe(NO3)2 molecular weight. It has many uses, to tools and machinery, and is used for the common building material steel. The molar mass of iron can be obtained from the periodic table. The electrons have so little mass compared to the rest of the atom that their masses can be ignored. Convert grams Fe(NO3)2 to moles or moles Fe(NO3)2 to grams. Its melting point is 250 ̊C (482 ̊F), density 3.056 g/cm3. Although there are several types of hemoglobin, the most commonly accepted formula is "C"_2932"H"_4724"N"_828"O"_840"S"_8"Fe"_4. So, the molar masses of Fe and of Fe³⁺ are the same: 55.845 g/mol. The molar mass of Fe³⁺ is 55.845 g/mol. The elemental symbol for iron is Fe, and according to my periodic table, the molecular mass is 55.845 to three decimal places. Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa. It is a metal in the first transition series. FePO4 is a yellow brown solid at room temperature. The mass of Fe³⁺ in 1 mol of compound depends on the formula of the compound.