HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi is 857.1176 g/mol

Convert between HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi weight and moles

Compound	Moles		Weight, g
HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi

Elemental composition of HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	1	0.1176
Helium	He	4.002602	1	0.4670
Lithium	Li	6.941	1	0.8098
Beryllium	Be	9.012182	1	1.0515
Boron	B	10.811	1	1.2613
Carbon	C	12.0107	1	1.4013
Nitrogen	N	14.0067	1	1.6342
Oxygen	O	15.9994	1	1.8667
Fluorine	F	18.9984032	1	2.2165
Neon	Ne	20.1797	1	2.3544
Sodium	Na	22.98976928	1	2.6822
Magnesium	Mg	24.3050	1	2.8357
Aluminum	Al	26.9815386	1	3.1479
Silicon	Si	28.0855	1	3.2767
Phosphorus	P	30.973762	1	3.6137
Sulfur	S	32.065	1	3.7410
Chlorine	Cl	35.453	1	4.1363
Argon	Ar	39.948	1	4.6607
Potassium	K	39.0983	1	4.5616
Calcium	Ca	40.078	1	4.6759
Scandium	Sc	44.955912	1	5.2450
Titanium	Ti	47.867	1	5.5846
Vanadium	V	50.9415	1	5.9433
Chromium	Cr	51.9961	1	6.0664
Manganese	Mn	54.938045	1	6.4096
Iron	Fe	55.845	1	6.5154
Cobalt	Co	58.933195	1	6.8757
Nickel	Ni	58.6934	1	6.8478

Computing molar mass step by step
First, compute the number of each atom in HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi: H: 1, He: 1, Li: 1, Be: 1, B: 1, C: 1, N: 1, O: 1, F: 1, Ne: 1, Na: 1, Mg: 1, Al: 1, Si: 1, P: 1, S: 1, Cl: 1, Ar: 1, K: 1, Ca: 1, Sc: 1, Ti: 1, V: 1, Cr: 1, Mn: 1, Fe: 1, Co: 1, Ni: 1 Then, lookup atomic weights for each element in periodic table: H: 1.00794, He: 4.002602, Li: 6.941, Be: 9.012182, B: 10.811, C: 12.0107, N: 14.0067, O: 15.9994, F: 18.9984032, Ne: 20.1797, Na: 22.98976928, Mg: 24.305, Al: 26.9815386, Si: 28.0855, P: 30.973762, S: 32.065, Cl: 35.453, Ar: 39.948, K: 39.0983, Ca: 40.078, Sc: 44.955912, Ti: 47.867, V: 50.9415, Cr: 51.9961, Mn: 54.938045, Fe: 55.845, Co: 58.933195, Ni: 58.6934 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNi) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(B) * Weight(B) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(F) * Weight(F) + Count(Ne) * Weight(Ne) + Count(Na) * Weight(Na) + Count(Mg) * Weight(Mg) + Count(Al) * Weight(Al) + Count(Si) * Weight(Si) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(Ar) * Weight(Ar) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(Sc) * Weight(Sc) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) + Count(Cr) * Weight(Cr) + Count(Mn) * Weight(Mn) + Count(Fe) * Weight(Fe) + Count(Co) * Weight(Co) + Count(Ni) * Weight(Ni) = 1 * 1.00794 + 1 * 4.002602 + 1 * 6.941 + 1 * 9.012182 + 1 * 10.811 + 1 * 12.0107 + 1 * 14.0067 + 1 * 15.9994 + 1 * 18.9984032 + 1 * 20.1797 + 1 * 22.98976928 + 1 * 24.305 + 1 * 26.9815386 + 1 * 28.0855 + 1 * 30.973762 + 1 * 32.065 + 1 * 35.453 + 1 * 39.948 + 1 * 39.0983 + 1 * 40.078 + 1 * 44.955912 + 1 * 47.867 + 1 * 50.9415 + 1 * 51.9961 + 1 * 54.938045 + 1 * 55.845 + 1 * 58.933195 + 1 * 58.6934 = 857.1176 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is CHAlArBBeCaClCoCrFFeHeKLiMgMnNNaNeNiOPSScSiTiV

Computing molar mass (molar weight)

To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use:

Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
parenthesis () or brackets [].
Common compound names.

Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, nitric acid, potassium permanganate, ethanol, fructose, caffeine, water.

Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.

Computing molecular weight (molecular mass)

To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2.

Definitions

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Mole is a standard scientific unit for measuring large quantities of very small entities such as atoms and molecules. One mole contains exactly 6.022 ×10²³ particles (Avogadro's number)

Steps to calculate molar mass

Identify the compound: write down the chemical formula of the compound. For example, water is H₂O, meaning it contains two hydrogen atoms and one oxygen atom.
Find atomic masses: look up the atomic masses of each element present in the compound. The atomic mass is usually found on the periodic table and is given in atomic mass units (amu).
Calculate molar mass of each element: multiply the atomic mass of each element by the number of atoms of that element in the compound.
Add them together: add the results from step 3 to get the total molar mass of the compound.

Example: calculating molar mass

Let's calculate the molar mass of carbon dioxide (CO₂):

Carbon (C) has an atomic mass of about 12.01 amu.
Oxygen (O) has an atomic mass of about 16.00 amu.
CO₂ has one carbon atom and two oxygen atoms.
The molar mass of carbon dioxide is 12.01 + (2 × 16.00) = 44.01 g/mol.

Lesson on computing molar mass

Weights of atoms and isotopes are from NIST article.

molecular weights calculated today

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