H3Fe2U4AgNaXe9I20Au7Al2As5EsNe4Hg12Ra15TeTa molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₃Fe₂U₄AgNaXe₉I₂₀Au₇Al₂As₅EsNe₄Hg₁₂Ra₁₅TeTa is 13163.5617 g/mol

Convert between H₃Fe₂U₄AgNaXe₉I₂₀Au₇Al₂As₅EsNe₄Hg₁₂Ra₁₅TeTa weight and moles

Compound	Moles		Weight, g
H₃Fe₂U₄AgNaXe₉I₂₀Au₇Al₂As₅EsNe₄Hg₁₂Ra₁₅TeTa

Elemental composition of H₃Fe₂U₄AgNaXe₉I₂₀Au₇Al₂As₅EsNe₄Hg₁₂Ra₁₅TeTa

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	3	0.0230
Iron	Fe	55.845	2	0.8485
Uranium	U	238.02891	4	7.2330
Silver	Ag	107.8682	1	0.8194
Sodium	Na	22.98976928	1	0.1746
Xenon	Xe	131.293	9	8.9766
Iodine	I	126.90447	20	19.2812
Gold	Au	196.966569	7	10.4741
Aluminum	Al	26.9815386	2	0.4099
Arsenic	As	74.92160	5	2.8458
Einsteinium	Es	252.08298	1	1.9150
Neon	Ne	20.1797	4	0.6132
Mercury	Hg	200.59	12	18.2859
Radium	Ra	226.025410	15	25.7558
Tellurium	Te	127.60	1	0.9693
Tantalum	Ta	180.94788	1	1.3746

Computing molar mass step by step
First, compute the number of each atom in H₃Fe₂U₄AgNaXe₉I₂₀Au₇Al₂As₅EsNe₄Hg₁₂Ra₁₅TeTa: H: 3, Fe: 2, U: 4, Ag: 1, Na: 1, Xe: 9, I: 20, Au: 7, Al: 2, As: 5, Es: 1, Ne: 4, Hg: 12, Ra: 15, Te: 1, Ta: 1 Then, lookup atomic weights for each element in periodic table: H: 1.00794, Fe: 55.845, U: 238.02891, Ag: 107.8682, Na: 22.98976928, Xe: 131.293, I: 126.90447, Au: 196.966569, Al: 26.9815386, As: 74.9216, Es: 252.08298, Ne: 20.1797, Hg: 200.59, Ra: 226.0254098, Te: 127.6, Ta: 180.94788 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₃Fe₂U₄AgNaXe₉I₂₀Au₇Al₂As₅EsNe₄Hg₁₂Ra₁₅TeTa) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(Fe) * Weight(Fe) + Count(U) * Weight(U) + Count(Ag) * Weight(Ag) + Count(Na) * Weight(Na) + Count(Xe) * Weight(Xe) + Count(I) * Weight(I) + Count(Au) * Weight(Au) + Count(Al) * Weight(Al) + Count(As) * Weight(As) + Count(Es) * Weight(Es) + Count(Ne) * Weight(Ne) + Count(Hg) * Weight(Hg) + Count(Ra) * Weight(Ra) + Count(Te) * Weight(Te) + Count(Ta) * Weight(Ta) = 3 * 1.00794 + 2 * 55.845 + 4 * 238.02891 + 1 * 107.8682 + 1 * 22.98976928 + 9 * 131.293 + 20 * 126.90447 + 7 * 196.966569 + 2 * 26.9815386 + 5 * 74.9216 + 1 * 252.08298 + 4 * 20.1797 + 12 * 200.59 + 15 * 226.0254098 + 1 * 127.6 + 1 * 180.94788 = 13163.5617 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is AgAl₂As₅Au₇EsFe₂H₃Hg₁₂I₂₀NaNe₄Ra₁₅TaTeU₄Xe₉

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

Please let us know how we can improve this web app.

How to cite?

Choose languageDeutschEnglishEspañol Français Italiano Nederlands Polski Português Русский 中文日本語 한국어