Molar Mass of C8H8O (Acetophenone)

Molar Mass Calculator
Chemical formula Write symbols with a capital letter: CoCl2 is cobalt chloride, COCl2 is phosgene. A hydrate takes a dot: CuSO4·5H2O or CuSO4.5H2O

What is the molar mass of C8H8O?

Answer

M(C8H8O) =
120.151 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 ≈ 79.97%
Hhydrogen81.00808.0640 w ≈ 6.71%
Ooxygen115.99915.999 w ≈ 13.32%
Σ = 120.151 g/mol w = 100%

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

Mass fractions of the elements

O 13.32%H 6.71%

Related Calculations

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Recalculate with different values ↑

Molar masses of substances nearby

FormulaM, g/mol
NaH₂PO₄ (monosodium phosphate)119.976
NaHSO₄ (sodium bisulfate)120.05
C₄H₈O₄120.104
C₈H₈O (acetophenone)120.151
MgSO₄ (magnesium sulfate)120.36
C₄H₁₁NO₃ (tromethamine)121.136
Sr(OH)₂ (strontium hydroxide)121.63

FAQ

What is the molar mass of C8H8O?

M(C₈H₈O) = 120.151 g/mol

How to calculate the molar mass of C₈H₈O?

Add up the atomic weights of all the atoms in the formula: 8 × 12.011 + 8 × 1.0080 + 15.999 = 120.151 g/mol.

How many grams are in 2 moles of C₈H₈O?

m = n × M = 2 mol × 120.151 g/mol = 240.302 g.

See Also