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    Molar Mass of Cl2 (Chlorine)

    Molar Mass Calculator
    Chemical formula

    What is the molar mass of Cl2?

    Answer

    M(Cl2) =
    70.90 g/mol

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

    One Cl atom: M(Cl) = 35.45 g/mol; Cl2 is two atoms.

    Contribution of each element
    Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
    Clchlorine235.4570.90 w = 100.00%

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

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    Molar Mass of Cl2 (Chlorine): Step by Step. M(Cl2) = 70.90 g/mol: 2 × 35.45 (Cl). Atom M(Cl) = 35.45 g/mol. Step-by-step calculation from IUPAC atomic weights.
    https://calculat.io/en/other/molar-mass/cl2/generated.jpgCopy

    Molar masses of substances nearby

    FormulaM, g/mol
    B₂O₃ (diboron trioxide)69.62
    Ga (gallium)69.723
    C₅H₁₀ (cyclopentane)70.135
    Cl₂ (chlorine)70.90
    MnO (manganese(II) oxide)70.937
    C₃H₅NO (acrylamide)71.079
    FeO (iron(II) oxide)71.844
    Recalculate with different values ↑

    FAQ

    What is the molar mass of Cl2?

    M(Cl₂) = 70.90 g/mol

    How to calculate the molar mass of Cl₂?

    Add up the atomic weights of all the atoms in the formula: 2 × 35.45 = 70.90 g/mol.

    How many grams are in 2 moles of Cl₂?

    m = n × M = 2 mol × 70.90 g/mol = 141.80 g.

    See Also