AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs is 2866.6679 g/mol

Convert between AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs weight and moles

Compound	Moles		Weight, g
AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs

Elemental composition of AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs

Element	Symbol	Atomic weight	Atoms	Mass percent
Gold	Au	196.966569	1	6.8709
Oxygen	O	15.9994	1	0.5581
Sulfur	S	32.065	1	1.1185
Uranium	U	238.02891	1	8.3033
Calcium	Ca	40.078	1	1.3981
Europium	Eu	151.964	1	5.3011
Tantalum	Ta	180.94788	1	6.3121
Tungsten	W	183.84	1	6.4130
Mercury	Hg	200.59	1	6.9973
Hydrogen	H	1.00794	1	0.0352
Helium	He	4.002602	1	0.1396
Krypton	Kr	83.798	1	2.9232
Cerium	Ce	140.116	1	4.8878
Radium	Ra	226.025410	1	7.8846
Copper	Cu	63.546	1	2.2167
Neon	Ne	20.1797	1	0.7039
Gallium	Ga	69.723	1	2.4322
Polonium	Po	208.982430	1	7.2901
Molybdenum	Mo	95.96	1	3.3474
Boron	B	10.811	1	0.3771
Bromine	Br	79.904	1	2.7873
Carbon	C	12.0107	1	0.4190
Fluorine	F	18.9984032	1	0.6627
Nitrogen	N	14.0067	1	0.4886
Arsenic	As	74.92160	1	2.6135
Astatine	At	209.987148	1	7.3251
Tennessine	Ts	292.208	1	10.1933

Computing molar mass step by step
First, compute the number of each atom in AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs: Au: 1, O: 1, S: 1, U: 1, Ca: 1, Eu: 1, Ta: 1, W: 1, Hg: 1, H: 1, He: 1, Kr: 1, Ce: 1, Ra: 1, Cu: 1, Ne: 1, Ga: 1, Po: 1, Mo: 1, B: 1, Br: 1, C: 1, F: 1, N: 1, As: 1, At: 1, Ts: 1 Then, lookup atomic weights for each element in periodic table: Au: 196.966569, O: 15.9994, S: 32.065, U: 238.02891, Ca: 40.078, Eu: 151.964, Ta: 180.94788, W: 183.84, Hg: 200.59, H: 1.00794, He: 4.002602, Kr: 83.798, Ce: 140.116, Ra: 226.0254098, Cu: 63.546, Ne: 20.1797, Ga: 69.723, Po: 208.9824304, Mo: 95.96, B: 10.811, Br: 79.904, C: 12.0107, F: 18.9984032, N: 14.0067, As: 74.9216, At: 209.987148, Ts: 292.20755 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (AuOSUCaEuTaWHgHHeKrCeRaCuNeGaPoMoBBrCFNAsAtTs) = ∑ Count_i * Weight_i = Count(Au) * Weight(Au) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(U) * Weight(U) + Count(Ca) * Weight(Ca) + Count(Eu) * Weight(Eu) + Count(Ta) * Weight(Ta) + Count(W) * Weight(W) + Count(Hg) * Weight(Hg) + Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Kr) * Weight(Kr) + Count(Ce) * Weight(Ce) + Count(Ra) * Weight(Ra) + Count(Cu) * Weight(Cu) + Count(Ne) * Weight(Ne) + Count(Ga) * Weight(Ga) + Count(Po) * Weight(Po) + Count(Mo) * Weight(Mo) + Count(B) * Weight(B) + Count(Br) * Weight(Br) + Count(C) * Weight(C) + Count(F) * Weight(F) + Count(N) * Weight(N) + Count(As) * Weight(As) + Count(At) * Weight(At) + Count(Ts) * Weight(Ts) = 1 * 196.966569 + 1 * 15.9994 + 1 * 32.065 + 1 * 238.02891 + 1 * 40.078 + 1 * 151.964 + 1 * 180.94788 + 1 * 183.84 + 1 * 200.59 + 1 * 1.00794 + 1 * 4.002602 + 1 * 83.798 + 1 * 140.116 + 1 * 226.0254098 + 1 * 63.546 + 1 * 20.1797 + 1 * 69.723 + 1 * 208.9824304 + 1 * 95.96 + 1 * 10.811 + 1 * 79.904 + 1 * 12.0107 + 1 * 18.9984032 + 1 * 14.0067 + 1 * 74.9216 + 1 * 209.987148 + 1 * 292.20755 = 2866.6679 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is CHAsAtAuBBrCaCeCuEuFGaHeHgKrMoNNeOPoRaSTaTsUW

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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