Tables show molar mass of various chemical compounds.

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Unit (molar mass)
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metals#

Substance	Molecular formula	Molar mass [g / mol]
aluminum (pure)	Al	26.98153843
iron	Fe	55.8452

liquids#

Substance	Molecular formula	Molar mass [g / mol]
acetone	(CH₃)₂CO	58.08
glycerin	C₃H₅(OH)₃	92.1
ethanol	C₂H₅OH	46.07
liquid hydrogen	H₂	2.01588
liquid nitrogen	N₂	28.0134
mercury	Hg	200.6
water 0°C	H₂O	18.01528
water 4°C	H₂O	18.01528
water 20°C	H₂O	18.01528
water 25°C	H₂O	18.01528
n-hexane	C₆H₁₄	86.18
methanol	CH₃OH	32.04
acetate acid	CH₃COOH	60.05
benzene	C₆H₆	78.12
chloroform	CHCl₃	119.4
tetrachloromethane	CCl₄	153.8
diethyl ethere	(C₂H₅)₂O	74.12
n-pentane	C₅H₁₂	72.15
n-heptane	C₇H₁₆	100.21
n-octane	C₈H₁₈	114.23
n-nonane	C₉H₂₀	128.2
n-decane	C₁₀H₂₂	142.29
undecane	C₁₁H₂₄	156.31
dodecane	C₁₂H₂₆	170.33
tridecane	C₁₃H₂₈	184.37
tetradecane	C₁₄H₃₀	198.39
hexadecane	C₁₆H₃₄	226.41
propan-2-ol (isopropyl alcohol)	C₃H₇OH	60.1
hexafluoronenzene	C₆F₆	186.06

alcohols#

Substance	Molecular formula	Molar mass [g / mol]
ethanol	C₂H₅OH	46.07
methanol	CH₃OH	32.04
propan-2-ol (isopropyl alcohol)	C₃H₇OH	60.1

other materials#

Substance	Molecular formula	Molar mass [g / mol]
ice (frozen water, 0°C)	H₂O	18.01528

other inorganic#

Substance	Molecular formula	Molar mass [g / mol]
ammonia	NH₃	17.03
phosphine	PH₃	34
argon	Ar	39.35
nitrogen	N₂	28.01
helium	He	4.003
krypton	Kr	83.8
xenon	Xe	131.3
neon	Ne	20.18
ozone	O₃	47.998

gases#

Substance	Molecular formula	Molar mass [g / mol]
ammonia	NH₃	17.03
hydrogen	H₂	2.01588
methane	CH₄	16.04
nitrogen	N₂	28.0134
carbon dioxide	CO₂	44.01
hydrogen chloride	HCl	36.46
hydrogen jodide	HI	127.91
hydrogen sulfuride	H₂S	34.08
propane	C₃H₈	44.1
n-buthane	C₄H₁₀	58.12
ethene (ethylene)	C₂H₄	28.05
nitrogen (II) oxide	NO	30.01
phosphine	PH₃	34
sulfur (IV) oxide	SO₂	64.06
chlorine	Cl₂	70.91
hydrogen	H₂	2.016
oxygen	O₂	31.999
steam	H₂O	18.016
vinyl chloride (chloroethene)	CH₂CHCl	64.51
nitrogen	N₂	28.01
fluorine	F₂	38
helium	He	4.003
krypton	Kr	83.8
xenon	Xe	131.3
neon	Ne	20.18
ozone	O₃	47.998

hydrocarbons#

Substance	Molecular formula	Molar mass [g / mol]
methane	CH₄	16.04
n-hexane	C₆H₁₄	86.18
propane	C₃H₈	44.1
n-buthane	C₄H₁₀	58.12
ethene (ethylene)	C₂H₄	28.05
benzene	C₆H₆	78.12
n-pentane	C₅H₁₂	72.15
n-heptane	C₇H₁₆	100.21
n-octane	C₈H₁₈	114.23
n-nonane	C₉H₂₀	128.2
n-decane	C₁₀H₂₂	142.29
undecane	C₁₁H₂₄	156.31
dodecane	C₁₂H₂₆	170.33
tridecane	C₁₃H₂₈	184.37
tetradecane	C₁₄H₃₀	198.39
hexadecane	C₁₆H₃₄	226.41
octadecane	C₁₈H₃₈	254.5
isocane (eicosane)	C₂₀H₄₂	282.5475
naphthalene	C₁₀H₈	128.1705

oxides#

Substance	Molecular formula	Molar mass [g / mol]
carbon dioxide	CO₂	44.01
carbon monoxide	CO	28.01
nitrogen (II) oxide	NO	30.01
sulfur (IV) oxide	SO₂	64.06

hydrides#

Substance	Molecular formula	Molar mass [g / mol]
arsenic hydride	AsH₃	77.95

inorganic acids#

Substance	Molecular formula	Molar mass [g / mol]
hydrogen bromide	HBr	80.92
hydrogen chloride	HCl	36.46
hydrogen jodide	HI	127.91
hydrogen sulfuride	H₂S	34.08
sulfurous (VI) acid	H₂SO₄	98.08

carboxylic acids#

Substance	Molecular formula	Molar mass [g / mol]
acetate acid	CH₃COOH	60.05

other organic#

Substance	Molecular formula	Molar mass [g / mol]
chloroform	CHCl₃	119.4
tetrachloromethane	CCl₄	153.8
diethyl ethere	(C₂H₅)₂O	74.12
vinyl chloride (chloroethene)	CH₂CHCl	64.51
hexafluoronenzene	C₆F₆	186.06

halogens#

Substance	Molecular formula	Molar mass [g / mol]
chlorine	Cl₂	70.91
fluorine	F₂	38

solids#

Substance	Molecular formula	Molar mass [g / mol]
octadecane	C₁₈H₃₈	254.5
isocane (eicosane)	C₂₀H₄₂	282.5475
naphthalene	C₁₀H₈	128.1705

Some facts#

The molar mass is simply the mass of one mole of substance, i.e. the mass of the sample containing about $6,023 \times 10 ^ {23}$ atoms or molecules (→ see Avogadro number).
The unit of molar mass in the SI system is kilogram per mole:

$\dfrac{kg}{mol}$
However, in practice more often the molar mass is given in grams per mole (g/mol).
The molar mass only makes sense for pure substances, i.e. it doesn't make sense for mixtures.
The molar mass is specific for a given chemical substance. It results directly from the masses of atoms contained in the molecule.
Knowledge of molar masses is useful in all kinds of stoichiometric calculations e.g. when converting molar concentration into percentages or determining the mass of substrates needed to perform the reaction.

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