O12H32C14N2Li2Be54Mg32Ca12Sr10Zn3CO2Fe2Au120000000 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of O₁₂H₃₂C₁₄N₂Li₂Be₅₄Mg₃₂Ca₁₂Sr₁₀Zn₃CO₂Fe₂Au_120000000 is 23635991687.6854 g/mol

Convert between O₁₂H₃₂C₁₄N₂Li₂Be₅₄Mg₃₂Ca₁₂Sr₁₀Zn₃CO₂Fe₂Au_120000000 weight and moles

Compound	Moles		Weight, g
O₁₂H₃₂C₁₄N₂Li₂Be₅₄Mg₃₂Ca₁₂Sr₁₀Zn₃CO₂Fe₂Au_120000000

Elemental composition of O₁₂H₃₂C₁₄N₂Li₂Be₅₄Mg₃₂Ca₁₂Sr₁₀Zn₃CO₂Fe₂Au_120000000

Element	Symbol	Atomic weight	Atoms	Mass percent
Oxygen	O	15.9994	14	0.0000
Hydrogen	H	1.00794	32	0.0000
Carbon	C	12.0107	15	0.0000
Nitrogen	N	14.0067	2	0.0000
Lithium	Li	6.941	2	0.0000
Beryllium	Be	9.012182	54	0.0000
Magnesium	Mg	24.3050	32	0.0000
Calcium	Ca	40.078	12	0.0000
Strontium	Sr	87.62	10	0.0000
Zinc	Zn	65.38	3	0.0000
Iron	Fe	55.845	2	0.0000
Gold	Au	196.966569	120000000	100.0000

Computing molar mass step by step
First, compute the number of each atom in O₁₂H₃₂C₁₄N₂Li₂Be₅₄Mg₃₂Ca₁₂Sr₁₀Zn₃CO₂Fe₂Au_120000000: O: 14, H: 32, C: 15, N: 2, Li: 2, Be: 54, Mg: 32, Ca: 12, Sr: 10, Zn: 3, Fe: 2, Au: 120000000 Then, lookup atomic weights for each element in periodic table: O: 15.9994, H: 1.00794, C: 12.0107, N: 14.0067, Li: 6.941, Be: 9.012182, Mg: 24.305, Ca: 40.078, Sr: 87.62, Zn: 65.38, Fe: 55.845, Au: 196.966569 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (O₁₂H₃₂C₁₄N₂Li₂Be₅₄Mg₃₂Ca₁₂Sr₁₀Zn₃CO₂Fe₂Au_120000000) = ∑ Count_i * Weight_i = Count(O) * Weight(O) + Count(H) * Weight(H) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(Mg) * Weight(Mg) + Count(Ca) * Weight(Ca) + Count(Sr) * Weight(Sr) + Count(Zn) * Weight(Zn) + Count(Fe) * Weight(Fe) + Count(Au) * Weight(Au) = 14 * 15.9994 + 32 * 1.00794 + 15 * 12.0107 + 2 * 14.0067 + 2 * 6.941 + 54 * 9.012182 + 32 * 24.305 + 12 * 40.078 + 10 * 87.62 + 3 * 65.38 + 2 * 55.845 + 120000000 * 196.966569 = 23635991687.6854 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₅H₃₂Au_120000000Be₅₄Ca₁₂Fe₂Li₂Mg₃₂N₂O₁₄Sr₁₀Zn₃

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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