Molar Mass of C7H16 (N-heptane)

Molar Mass Calculator

What is the molar mass of C₇H₁₆?

Answer

M(C₇H₁₆) =

100.205 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	Mass fraction, w
Ccarbon	7	12.011	84.077 w ≈ 83.90%	≈ 83.90%
Hhydrogen	16	1.0080	16.1280 w ≈ 16.10%	≈ 16.10%
Σ = 100.205 g/mol w = 100%				100%

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

Mass fractions of the elements

C 83.90%

H 16.10%

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Molar masses of substances nearby

Formula	M, g/mol
CaCO₃ (calcium carbonate)	100.086
KHCO₃ (potassium hydrogen carbonate)	100.114
C₆H₁₂O (cyclohexanol)	100.161
C₇H₁₆ (n-heptane)	100.205
HClO₄ (perchloric acid)	100.45
Ru (ruthenium)	101.07
KNO₃ (potassium nitrate)	101.102

FAQ

What is the molar mass of C7H16?

M(C₇H₁₆) = 100.205 g/mol

How to calculate the molar mass of C₇H₁₆?

Add up the atomic weights of all the atoms in the formula: 7 × 12.011 + 16 × 1.0080 = 100.205 g/mol.

How many grams are in 2 moles of C₇H₁₆?

m = n × M = 2 mol × 100.205 g/mol = 200.410 g.

See Also