C7244N5612H51392O49581S565F4958He30Li568Be4Ge59B582No3012Cn4 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₇₂₄₄N₅₆₁₂H₅₁₃₉₂O₄₉₅₈₁S₅₆₅F₄₉₅₈He₃₀Li₅₆₈Be₄Ge₅₉B₅₈₂No₃₀₁₂Cn₄ is 1919217.5987 g/mol

Convert between C₇₂₄₄N₅₆₁₂H₅₁₃₉₂O₄₉₅₈₁S₅₆₅F₄₉₅₈He₃₀Li₅₆₈Be₄Ge₅₉B₅₈₂No₃₀₁₂Cn₄ weight and moles

Compound	Moles		Weight, g
C₇₂₄₄N₅₆₁₂H₅₁₃₉₂O₄₉₅₈₁S₅₆₅F₄₉₅₈He₃₀Li₅₆₈Be₄Ge₅₉B₅₈₂No₃₀₁₂Cn₄

Elemental composition of C₇₂₄₄N₅₆₁₂H₅₁₃₉₂O₄₉₅₈₁S₅₆₅F₄₉₅₈He₃₀Li₅₆₈Be₄Ge₅₉B₅₈₂No₃₀₁₂Cn₄

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	7244	4.5334
Nitrogen	N	14.0067	5612	4.0957
Hydrogen	H	1.00794	51392	2.6990
Oxygen	O	15.9994	49581	41.3328
Sulfur	S	32.065	565	0.9440
Fluorine	F	18.9984032	4958	4.9079
Helium	He	4.002602	30	0.0063
Lithium	Li	6.941	568	0.2054
Beryllium	Be	9.012182	4	0.0019
Germanium	Ge	72.64	59	0.2233
Boron	B	10.811	582	0.3278
Nobelium	No	259.1010	3012	40.6630
Copernicium	Cn	285.1741	4	0.0594

Computing molar mass step by step
First, compute the number of each atom in C₇₂₄₄N₅₆₁₂H₅₁₃₉₂O₄₉₅₈₁S₅₆₅F₄₉₅₈He₃₀Li₅₆₈Be₄Ge₅₉B₅₈₂No₃₀₁₂Cn₄: C: 7244, N: 5612, H: 51392, O: 49581, S: 565, F: 4958, He: 30, Li: 568, Be: 4, Ge: 59, B: 582, No: 3012, Cn: 4 Then, lookup atomic weights for each element in periodic table: C: 12.0107, N: 14.0067, H: 1.00794, O: 15.9994, S: 32.065, F: 18.9984032, He: 4.002602, Li: 6.941, Be: 9.012182, Ge: 72.64, B: 10.811, No: 259.10103, Cn: 285.17411 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₇₂₄₄N₅₆₁₂H₅₁₃₉₂O₄₉₅₈₁S₅₆₅F₄₉₅₈He₃₀Li₅₆₈Be₄Ge₅₉B₅₈₂No₃₀₁₂Cn₄) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(N) * Weight(N) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(F) * Weight(F) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(Ge) * Weight(Ge) + Count(B) * Weight(B) + Count(No) * Weight(No) + Count(Cn) * Weight(Cn) = 7244 * 12.0107 + 5612 * 14.0067 + 51392 * 1.00794 + 49581 * 15.9994 + 565 * 32.065 + 4958 * 18.9984032 + 30 * 4.002602 + 568 * 6.941 + 4 * 9.012182 + 59 * 72.64 + 582 * 10.811 + 3012 * 259.10103 + 4 * 285.17411 = 1919217.5987 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₇₂₄₄H₅₁₃₉₂B₅₈₂Be₄Cn₄F₄₉₅₈Ge₅₉He₃₀Li₅₆₈N₅₆₁₂No₃₀₁₂O₄₉₅₈₁S₅₆₅

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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