H1He2Li3Be4C5B6O7F8Ne9Na1Mg2Al3P4S5Cl6Ar7K8Ca9Ti1V2 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₁He₂Li₃Be₄C₅B₆O₇F₈Ne₉Na₁Mg₂Al₃P₄S₅Cl₆Ar₇K₈Ca₉Ti₁V₂ is 2388.7615 g/mol

Convert between H₁He₂Li₃Be₄C₅B₆O₇F₈Ne₉Na₁Mg₂Al₃P₄S₅Cl₆Ar₇K₈Ca₉Ti₁V₂ weight and moles

Compound	Moles		Weight, g
H₁He₂Li₃Be₄C₅B₆O₇F₈Ne₉Na₁Mg₂Al₃P₄S₅Cl₆Ar₇K₈Ca₉Ti₁V₂

Elemental composition of H₁He₂Li₃Be₄C₅B₆O₇F₈Ne₉Na₁Mg₂Al₃P₄S₅Cl₆Ar₇K₈Ca₉Ti₁V₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	1	0.0422
Helium	He	4.002602	2	0.3351
Lithium	Li	6.941	3	0.8717
Beryllium	Be	9.012182	4	1.5091
Carbon	C	12.0107	5	2.5140
Boron	B	10.811	6	2.7155
Oxygen	O	15.9994	7	4.6884
Fluorine	F	18.9984032	8	6.3626
Neon	Ne	20.1797	9	7.6030
Sodium	Na	22.98976928	1	0.9624
Magnesium	Mg	24.3050	2	2.0349
Aluminum	Al	26.9815386	3	3.3886
Phosphorus	P	30.973762	4	5.1866
Sulfur	S	32.065	5	6.7116
Chlorine	Cl	35.453	6	8.9049
Argon	Ar	39.948	7	11.7063
Potassium	K	39.0983	8	13.0941
Calcium	Ca	40.078	9	15.1000
Titanium	Ti	47.867	1	2.0038
Vanadium	V	50.9415	2	4.2651

Computing molar mass step by step
First, compute the number of each atom in H₁He₂Li₃Be₄C₅B₆O₇F₈Ne₉Na₁Mg₂Al₃P₄S₅Cl₆Ar₇K₈Ca₉Ti₁V₂: H: 1, He: 2, Li: 3, Be: 4, C: 5, B: 6, O: 7, F: 8, Ne: 9, Na: 1, Mg: 2, Al: 3, P: 4, S: 5, Cl: 6, Ar: 7, K: 8, Ca: 9, Ti: 1, V: 2 Then, lookup atomic weights for each element in periodic table: H: 1.00794, He: 4.002602, Li: 6.941, Be: 9.012182, C: 12.0107, B: 10.811, O: 15.9994, F: 18.9984032, Ne: 20.1797, Na: 22.98976928, Mg: 24.305, Al: 26.9815386, P: 30.973762, S: 32.065, Cl: 35.453, Ar: 39.948, K: 39.0983, Ca: 40.078, Ti: 47.867, V: 50.9415 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₁He₂Li₃Be₄C₅B₆O₇F₈Ne₉Na₁Mg₂Al₃P₄S₅Cl₆Ar₇K₈Ca₉Ti₁V₂) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(C) * Weight(C) + Count(B) * Weight(B) + 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(P) * Weight(P) + Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(Ar) * Weight(Ar) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) = 1 * 1.00794 + 2 * 4.002602 + 3 * 6.941 + 4 * 9.012182 + 5 * 12.0107 + 6 * 10.811 + 7 * 15.9994 + 8 * 18.9984032 + 9 * 20.1797 + 1 * 22.98976928 + 2 * 24.305 + 3 * 26.9815386 + 4 * 30.973762 + 5 * 32.065 + 6 * 35.453 + 7 * 39.948 + 8 * 39.0983 + 9 * 40.078 + 1 * 47.867 + 2 * 50.9415 = 2388.7615 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₅HAl₃Ar₇B₆Be₄Ca₉Cl₆F₈He₂K₈Li₃Mg₂NaNe₉O₇P₄S₅TiV₂

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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