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    Molar Mass of C8H18 (Octane)

    Molar Mass Calculator
    Chemical formula

    What is the molar mass of C8H18?

    Answer

    M(C8H18) =
    114.232 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
    Ccarbon812.01196.088 w ≈ 84.12%
    Hhydrogen181.008018.1440 w ≈ 15.88%
    Σ = 114.232 g/mol w = 100%

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

    Mass fractions of the elements

    H 15.88%

    Related Calculations

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    <a href="https://calculat.io/en/other/molar-mass/c8h18">Molar Mass of C8H18 (Octane): Step by Step - Calculatio</a>Copy
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    Molar Mass of C8H18 (Octane): Step by Step. M(C8H18) = 114.232 g/mol: 8 × 12.011 (C) + 18 × 1.0080 (H). Mass fractions: C 84.12%, H 15.88%.
    https://calculat.io/en/other/molar-mass/c8h18/generated.jpgCopy

    Molar masses of substances nearby

    FormulaM, g/mol
    C₆H₅Cl (chlorobenzene)112.56
    C₄H₇N₃O (creatinine)113.120
    C₂HF₃O₂ (trifluoroacetic acid)114.022
    C₈H₁₈ (octane)114.232
    In (indium)114.82
    MnCO₃ (manganese carbonate)114.946
    NH₄H₂PO₄ (monobasic ammonium phosphate)115.025
    Recalculate with different values ↑

    FAQ

    What is the molar mass of C8H18?

    M(C₈H₁₈) = 114.232 g/mol

    How to calculate the molar mass of C₈H₁₈?

    Add up the atomic weights of all the atoms in the formula: 8 × 12.011 + 18 × 1.0080 = 114.232 g/mol.

    How many grams are in 2 moles of C₈H₁₈?

    m = n × M = 2 mol × 114.232 g/mol = 228.464 g.

    See Also