Ar2XeNe4HgC10O8N8KrGaGeSiSeF5AgAuWNaH50Ca3B10Ba2He20ThUuo molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Ar₂XeNe₄HgC₁₀O₈N₈KrGaGeSiSeF₅AgAuWNaH₅₀Ca₃B₁₀Ba₂He₂₀ThUuo is 2658.0018 g/mol

Convert between Ar₂XeNe₄HgC₁₀O₈N₈KrGaGeSiSeF₅AgAuWNaH₅₀Ca₃B₁₀Ba₂He₂₀ThUuo weight and moles

Compound	Moles		Weight, g
Ar₂XeNe₄HgC₁₀O₈N₈KrGaGeSiSeF₅AgAuWNaH₅₀Ca₃B₁₀Ba₂He₂₀ThUuo

Elemental composition of Ar₂XeNe₄HgC₁₀O₈N₈KrGaGeSiSeF₅AgAuWNaH₅₀Ca₃B₁₀Ba₂He₂₀ThUuo

Element	Symbol	Atomic weight	Atoms	Mass percent
Argon	Ar	39.948	2	3.0059
Xenon	Xe	131.293	1	4.9395
Neon	Ne	20.1797	4	3.0368
Mercury	Hg	200.59	1	7.5466
Carbon	C	12.0107	10	4.5187
Oxygen	O	15.9994	8	4.8155
Nitrogen	N	14.0067	8	4.2157
Krypton	Kr	83.798	1	3.1527
Gallium	Ga	69.723	1	2.6231
Germanium	Ge	72.64	1	2.7329
Silicon	Si	28.0855	1	1.0566
Selenium	Se	78.96	1	2.9707
Fluorine	F	18.9984032	5	3.5738
Silver	Ag	107.8682	1	4.0582
Gold	Au	196.966569	1	7.4103
Tungsten	W	183.84	1	6.9165
Sodium	Na	22.98976928	1	0.8649
Hydrogen	H	1.00794	50	1.8960
Calcium	Ca	40.078	3	4.5235
Boron	B	10.811	10	4.0673
Barium	Ba	137.327	2	10.3331
Helium	He	4.002602	20	3.0117
Thorium	Th	232.03806	1	8.7298
Oganesson	Uuo	0.0000000	1	0.0000

Computing molar mass step by step
First, compute the number of each atom in Ar₂XeNe₄HgC₁₀O₈N₈KrGaGeSiSeF₅AgAuWNaH₅₀Ca₃B₁₀Ba₂He₂₀ThUuo: Ar: 2, Xe: 1, Ne: 4, Hg: 1, C: 10, O: 8, N: 8, Kr: 1, Ga: 1, Ge: 1, Si: 1, Se: 1, F: 5, Ag: 1, Au: 1, W: 1, Na: 1, H: 50, Ca: 3, B: 10, Ba: 2, He: 20, Th: 1, Uuo: 1 Then, lookup atomic weights for each element in periodic table: Ar: 39.948, Xe: 131.293, Ne: 20.1797, Hg: 200.59, C: 12.0107, O: 15.9994, N: 14.0067, Kr: 83.798, Ga: 69.723, Ge: 72.64, Si: 28.0855, Se: 78.96, F: 18.9984032, Ag: 107.8682, Au: 196.966569, W: 183.84, Na: 22.98976928, H: 1.00794, Ca: 40.078, B: 10.811, Ba: 137.327, He: 4.002602, Th: 232.03806, Uuo: 0 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Ar₂XeNe₄HgC₁₀O₈N₈KrGaGeSiSeF₅AgAuWNaH₅₀Ca₃B₁₀Ba₂He₂₀ThUuo) = ∑ Count_i * Weight_i = Count(Ar) * Weight(Ar) + Count(Xe) * Weight(Xe) + Count(Ne) * Weight(Ne) + Count(Hg) * Weight(Hg) + Count(C) * Weight(C) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(Kr) * Weight(Kr) + Count(Ga) * Weight(Ga) + Count(Ge) * Weight(Ge) + Count(Si) * Weight(Si) + Count(Se) * Weight(Se) + Count(F) * Weight(F) + Count(Ag) * Weight(Ag) + Count(Au) * Weight(Au) + Count(W) * Weight(W) + Count(Na) * Weight(Na) + Count(H) * Weight(H) + Count(Ca) * Weight(Ca) + Count(B) * Weight(B) + Count(Ba) * Weight(Ba) + Count(He) * Weight(He) + Count(Th) * Weight(Th) + Count(Uuo) * Weight(Uuo) = 2 * 39.948 + 1 * 131.293 + 4 * 20.1797 + 1 * 200.59 + 10 * 12.0107 + 8 * 15.9994 + 8 * 14.0067 + 1 * 83.798 + 1 * 69.723 + 1 * 72.64 + 1 * 28.0855 + 1 * 78.96 + 5 * 18.9984032 + 1 * 107.8682 + 1 * 196.966569 + 1 * 183.84 + 1 * 22.98976928 + 50 * 1.00794 + 3 * 40.078 + 10 * 10.811 + 2 * 137.327 + 20 * 4.002602 + 1 * 232.03806 + 1 * 0 = 2658.0018 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₀H₅₀AgAr₂AuB₁₀Ba₂Ca₃F₅GaGeHe₂₀HgKrN₈NaNe₄O₈SeSiThUuoWXe

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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