HHe1Li1Be1B1C1N1O1F1Ne1Na1Mg1Al1SI1PS1Cl1Ar1K1CaSC1Ti1VCH1Mn molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of HHe₁Li₁Be₁B₁C₁N₁O₁F₁Ne₁Na₁Mg₁Al₁SI₁PS₁Cl₁Ar₁K₁CaSC₁Ti₁VCH₁Mn is 774.6724 g/mol

Convert between HHe₁Li₁Be₁B₁C₁N₁O₁F₁Ne₁Na₁Mg₁Al₁SI₁PS₁Cl₁Ar₁K₁CaSC₁Ti₁VCH₁Mn weight and moles

Compound	Moles		Weight, g
HHe₁Li₁Be₁B₁C₁N₁O₁F₁Ne₁Na₁Mg₁Al₁SI₁PS₁Cl₁Ar₁K₁CaSC₁Ti₁VCH₁Mn

Elemental composition of HHe₁Li₁Be₁B₁C₁N₁O₁F₁Ne₁Na₁Mg₁Al₁SI₁PS₁Cl₁Ar₁K₁CaSC₁Ti₁VCH₁Mn

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	2	0.2602
Helium	He	4.002602	1	0.5167
Lithium	Li	6.941	1	0.8960
Beryllium	Be	9.012182	1	1.1634
Boron	B	10.811	1	1.3956
Carbon	C	12.0107	3	4.6513
Nitrogen	N	14.0067	1	1.8081
Oxygen	O	15.9994	1	2.0653
Fluorine	F	18.9984032	1	2.4524
Neon	Ne	20.1797	1	2.6049
Sodium	Na	22.98976928	1	2.9677
Magnesium	Mg	24.3050	1	3.1375
Aluminum	Al	26.9815386	1	3.4830
Sulfur	S	32.065	3	12.4175
Iodine	I	126.90447	1	16.3817
Phosphorus	P	30.973762	1	3.9983
Chlorine	Cl	35.453	1	4.5765
Argon	Ar	39.948	1	5.1568
Potassium	K	39.0983	1	5.0471
Calcium	Ca	40.078	1	5.1735
Titanium	Ti	47.867	1	6.1790
Vanadium	V	50.9415	1	6.5759
Manganese	Mn	54.938045	1	7.0918

Computing molar mass step by step
First, compute the number of each atom in HHe₁Li₁Be₁B₁C₁N₁O₁F₁Ne₁Na₁Mg₁Al₁SI₁PS₁Cl₁Ar₁K₁CaSC₁Ti₁VCH₁Mn: H: 2, He: 1, Li: 1, Be: 1, B: 1, C: 3, N: 1, O: 1, F: 1, Ne: 1, Na: 1, Mg: 1, Al: 1, S: 3, I: 1, P: 1, Cl: 1, Ar: 1, K: 1, Ca: 1, Ti: 1, V: 1, Mn: 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, S: 32.065, I: 126.90447, P: 30.973762, Cl: 35.453, Ar: 39.948, K: 39.0983, Ca: 40.078, Ti: 47.867, V: 50.9415, Mn: 54.938045 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (HHe₁Li₁Be₁B₁C₁N₁O₁F₁Ne₁Na₁Mg₁Al₁SI₁PS₁Cl₁Ar₁K₁CaSC₁Ti₁VCH₁Mn) = ∑ 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(S) * Weight(S) + Count(I) * Weight(I) + Count(P) * Weight(P) + Count(Cl) * Weight(Cl) + Count(Ar) * Weight(Ar) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) + Count(Mn) * Weight(Mn) = 2 * 1.00794 + 1 * 4.002602 + 1 * 6.941 + 1 * 9.012182 + 1 * 10.811 + 3 * 12.0107 + 1 * 14.0067 + 1 * 15.9994 + 1 * 18.9984032 + 1 * 20.1797 + 1 * 22.98976928 + 1 * 24.305 + 1 * 26.9815386 + 3 * 32.065 + 1 * 126.90447 + 1 * 30.973762 + 1 * 35.453 + 1 * 39.948 + 1 * 39.0983 + 1 * 40.078 + 1 * 47.867 + 1 * 50.9415 + 1 * 54.938045 = 774.6724 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₃H₂AlArBBeCaClFHeIKLiMgMnNNaNeOPS₃TiV

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, T, 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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