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    Molar Mass of BaCl2·2H2O (Barium Chloride Dihydrate)

    Molar Mass Calculator
    Chemical formula

    What is the molar mass of BaCl2·2H2O?

    Answer

    M(BaCl2·2H2O) =
    244.26 g/mol

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

    2 H2O — water of crystallization, part of the molar mass: 2 × 18.015 = 36.030.

    BaCl2·2H2O = BaCl2 + 2 H2O → Ba 1, Cl 2, H 4, O 2

    Contribution of each element
    Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
    Babarium1137.33137.33 w ≈ 56.22%
    Clchlorine235.4570.90 w ≈ 29.03%
    Hhydrogen41.00804.0320 w ≈ 1.65%
    Ooxygen215.99931.998 w ≈ 13.10%
    Σ = 244.26 g/mol w = 100%

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

    Mass fractions of the elements

    Cl 29.03%O 13.10%H 1.65%

    See Also

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    Molar Mass of BaCl2·2H2O (Barium Chloride Dihydrate). M(BaCl2·2H2O) = 244.26 g/mol: 137.33 (Ba) + 2 × 35.45 (Cl) + 4 × 1.0080 (H) + 2 × 15.999 (O). Mass fractions: Ba 56.22%, Cl 29.03%, O 13.10%.
    https://calculat.io/en/other/molar-mass/bacl2.2h2o/generated.jpgCopy

    FAQ

    What is the molar mass of BaCl2·2H2O?

    M(BaCl₂·2H₂O) = 244.26 g/mol

    Is the water counted in BaCl₂·2H₂O?

    Yes: the water of crystallization is part of the formula and of the molar mass. 2 H₂O add 2 × 18.015 = 36.030 g/mol; M(BaCl₂·2H₂O) = 244.26 g/mol, while anhydrous M(BaCl₂) = 208.23 g/mol.

    How many grams are in 2 moles of BaCl₂·2H₂O?

    m = n × M = 2 mol × 244.26 g/mol = 488.52 g.