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    Molar Mass of Fe (Iron)

    Molar Mass Calculator
    Chemical formula

    What is the molar mass of Fe?

    Answer

    M(Fe) =
    55.845 g/mol

    Atomic weights: IUPAC standard values (CIAAW, 2024).

    Contribution of each element
    Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
    Feiron155.84555.845 w = 100.00%

    Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

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    Molar Mass of Fe (Iron): Step by Step. M(Fe) = 55.845 g/mol: the standard atomic weight of iron (IUPAC, CIAAW 2024).
    https://calculat.io/en/other/molar-mass/fe/generated.jpgCopy

    Neighbouring elements of the periodic table

    FormulaM, g/mol
    V (vanadium)50.942
    Cr (chromium)51.996
    Mn (manganese)54.938
    Fe (iron)55.845
    Co (cobalt)58.933
    Ni (nickel)58.693
    Cu (copper)63.546
    Recalculate with different values ↑

    FAQ

    What is the molar mass of Fe?

    M(Fe) = 55.845 g/mol

    How is the molar mass of iron different from its atomic weight?

    Only in units: the relative atomic mass Ar(Fe) = 55.845 has no unit, and the molar mass M(Fe) = 55.845 g/mol is the mass of one mole of atoms (6.022 × 10²³ of them).

    How many grams are in 2 moles of Fe?

    m = n × M = 2 mol × 55.845 g/mol = 111.690 g.

    See Also