FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb is 1954.6962 g/mol

Convert between FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb weight and moles

Compound	Moles		Weight, g
FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb

Elemental composition of FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb

Element	Symbol	Atomic weight	Atoms	Mass percent
Iron	Fe	55.845	1	2.8570
Silicon	Si	28.0855	1	1.4368
Magnesium	Mg	24.3050	1	1.2434
Carbon	C	12.0107	1	0.6145
Oxygen	O	15.9994	1	0.8185
Xenon	Xe	131.293	1	6.7168
Hydrogen	H	1.00794	1	0.0516
Cobalt	Co	58.933195	1	3.0150
Gold	Au	196.966569	1	10.0766
Lead	Pb	207.2	1	10.6001
Phosphorus	P	30.973762	1	1.5846
Bromine	Br	79.904	1	4.0878
Gadolinium	Gd	157.25	1	8.0447
Helium	He	4.002602	1	0.2048
Lithium	Li	6.941	1	0.3551
Calcium	Ca	40.078	1	2.0503
Potassium	K	39.0983	1	2.0002
Sulfur	S	32.065	1	1.6404
Antimony	Sb	121.760	1	6.2291
Palladium	Pd	106.42	1	5.4443
Nickel	Ni	58.6934	1	3.0027
Arsenic	As	74.92160	1	3.8329
Polonium	Po	208.982430	1	10.6913
Yttrium	Y	88.90585	1	4.5483
Ytterbium	Yb	173.054	1	8.8532

Computing molar mass step by step
First, compute the number of each atom in FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb: Fe: 1, Si: 1, Mg: 1, C: 1, O: 1, Xe: 1, H: 1, Co: 1, Au: 1, Pb: 1, P: 1, Br: 1, Gd: 1, He: 1, Li: 1, Ca: 1, K: 1, S: 1, Sb: 1, Pd: 1, Ni: 1, As: 1, Po: 1, Y: 1, Yb: 1 Then, lookup atomic weights for each element in periodic table: Fe: 55.845, Si: 28.0855, Mg: 24.305, C: 12.0107, O: 15.9994, Xe: 131.293, H: 1.00794, Co: 58.933195, Au: 196.966569, Pb: 207.2, P: 30.973762, Br: 79.904, Gd: 157.25, He: 4.002602, Li: 6.941, Ca: 40.078, K: 39.0983, S: 32.065, Sb: 121.76, Pd: 106.42, Ni: 58.6934, As: 74.9216, Po: 208.9824304, Y: 88.90585, Yb: 173.054 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (FeSiMgCOXeHCoAuPbPBrGdHeLiCaKSSbPdNiAsPoYYb) = ∑ Count_i * Weight_i = Count(Fe) * Weight(Fe) + Count(Si) * Weight(Si) + Count(Mg) * Weight(Mg) + Count(C) * Weight(C) + Count(O) * Weight(O) + Count(Xe) * Weight(Xe) + Count(H) * Weight(H) + Count(Co) * Weight(Co) + Count(Au) * Weight(Au) + Count(Pb) * Weight(Pb) + Count(P) * Weight(P) + Count(Br) * Weight(Br) + Count(Gd) * Weight(Gd) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Ca) * Weight(Ca) + Count(K) * Weight(K) + Count(S) * Weight(S) + Count(Sb) * Weight(Sb) + Count(Pd) * Weight(Pd) + Count(Ni) * Weight(Ni) + Count(As) * Weight(As) + Count(Po) * Weight(Po) + Count(Y) * Weight(Y) + Count(Yb) * Weight(Yb) = 1 * 55.845 + 1 * 28.0855 + 1 * 24.305 + 1 * 12.0107 + 1 * 15.9994 + 1 * 131.293 + 1 * 1.00794 + 1 * 58.933195 + 1 * 196.966569 + 1 * 207.2 + 1 * 30.973762 + 1 * 79.904 + 1 * 157.25 + 1 * 4.002602 + 1 * 6.941 + 1 * 40.078 + 1 * 39.0983 + 1 * 32.065 + 1 * 121.76 + 1 * 106.42 + 1 * 58.6934 + 1 * 74.9216 + 1 * 208.9824304 + 1 * 88.90585 + 1 * 173.054 = 1954.6962 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is CHAsAuBrCaCoFeGdHeKLiMgNiOPPbPdPoSSbSiXeYYb

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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