N3Hg6O2Fe6Au3H2HeCON2Hg6AuCSiO2U5FeEsCONNe3ArXeCa6Es15N8Si3O molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of N₃Hg₆O₂Fe₆Au₃H₂HeCON₂Hg₆AuCSiO₂U₅FeEsCONNe₃ArXeCa₆Es₁₅N₈Si₃O is 9744.0638 g/mol

Convert between N₃Hg₆O₂Fe₆Au₃H₂HeCON₂Hg₆AuCSiO₂U₅FeEsCONNe₃ArXeCa₆Es₁₅N₈Si₃O weight and moles

Compound	Moles		Weight, g
N₃Hg₆O₂Fe₆Au₃H₂HeCON₂Hg₆AuCSiO₂U₅FeEsCONNe₃ArXeCa₆Es₁₅N₈Si₃O

Elemental composition of N₃Hg₆O₂Fe₆Au₃H₂HeCON₂Hg₆AuCSiO₂U₅FeEsCONNe₃ArXeCa₆Es₁₅N₈Si₃O

Element	Symbol	Atomic weight	Atoms	Mass percent
Nitrogen	N	14.0067	14	2.0124
Mercury	Hg	200.59	12	24.7030
Oxygen	O	15.9994	7	1.1494
Iron	Fe	55.845	7	4.0118
Gold	Au	196.966569	4	8.0856
Hydrogen	H	1.00794	2	0.0207
Helium	He	4.002602	1	0.0411
Carbon	C	12.0107	3	0.3698
Silicon	Si	28.0855	4	1.1529
Uranium	U	238.02891	5	12.2140
Einsteinium	Es	252.08298	16	41.3927
Neon	Ne	20.1797	3	0.6213
Argon	Ar	39.948	1	0.4100
Xenon	Xe	131.293	1	1.3474
Calcium	Ca	40.078	6	2.4678

Computing molar mass step by step
First, compute the number of each atom in N₃Hg₆O₂Fe₆Au₃H₂HeCON₂Hg₆AuCSiO₂U₅FeEsCONNe₃ArXeCa₆Es₁₅N₈Si₃O: N: 14, Hg: 12, O: 7, Fe: 7, Au: 4, H: 2, He: 1, C: 3, Si: 4, U: 5, Es: 16, Ne: 3, Ar: 1, Xe: 1, Ca: 6 Then, lookup atomic weights for each element in periodic table: N: 14.0067, Hg: 200.59, O: 15.9994, Fe: 55.845, Au: 196.966569, H: 1.00794, He: 4.002602, C: 12.0107, Si: 28.0855, U: 238.02891, Es: 252.08298, Ne: 20.1797, Ar: 39.948, Xe: 131.293, Ca: 40.078 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (N₃Hg₆O₂Fe₆Au₃H₂HeCON₂Hg₆AuCSiO₂U₅FeEsCONNe₃ArXeCa₆Es₁₅N₈Si₃O) = ∑ Count_i * Weight_i = Count(N) * Weight(N) + Count(Hg) * Weight(Hg) + Count(O) * Weight(O) + Count(Fe) * Weight(Fe) + Count(Au) * Weight(Au) + Count(H) * Weight(H) + Count(He) * Weight(He) + Count(C) * Weight(C) + Count(Si) * Weight(Si) + Count(U) * Weight(U) + Count(Es) * Weight(Es) + Count(Ne) * Weight(Ne) + Count(Ar) * Weight(Ar) + Count(Xe) * Weight(Xe) + Count(Ca) * Weight(Ca) = 14 * 14.0067 + 12 * 200.59 + 7 * 15.9994 + 7 * 55.845 + 4 * 196.966569 + 2 * 1.00794 + 1 * 4.002602 + 3 * 12.0107 + 4 * 28.0855 + 5 * 238.02891 + 16 * 252.08298 + 3 * 20.1797 + 1 * 39.948 + 1 * 131.293 + 6 * 40.078 = 9744.0638 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₃H₂ArAu₄Ca₆Es₁₆Fe₇HeHg₁₂N₁₄Ne₃O₇Si₄U₅Xe

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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