CoPtMn1000W2RfAuMtFeNb2TiScFrSmEuGdLrNoTeSbS4MoDy6Ho4Er7MdFm molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of CoPtMn₁₀₀₀W₂RfAuMtFeNb₂TiScFrSmEuGdLrNoTeSbS₄MoDy₆Ho₄Er₇MdFm is 61630.5695 g/mol

Convert between CoPtMn₁₀₀₀W₂RfAuMtFeNb₂TiScFrSmEuGdLrNoTeSbS₄MoDy₆Ho₄Er₇MdFm weight and moles

Compound	Moles		Weight, g
CoPtMn₁₀₀₀W₂RfAuMtFeNb₂TiScFrSmEuGdLrNoTeSbS₄MoDy₆Ho₄Er₇MdFm

Elemental composition of CoPtMn₁₀₀₀W₂RfAuMtFeNb₂TiScFrSmEuGdLrNoTeSbS₄MoDy₆Ho₄Er₇MdFm

Element	Symbol	Atomic weight	Atoms	Mass percent
Cobalt	Co	58.933195	1	0.0956
Platinum	Pt	195.084	1	0.3165
Manganese	Mn	54.938045	1000	89.1409
Tungsten	W	183.84	2	0.5966
Rutherfordium	Rf	265.1167	1	0.4302
Gold	Au	196.966569	1	0.3196
Meitnerium	Mt	276.1512	1	0.4481
Iron	Fe	55.845	1	0.0906
Niobium	Nb	92.90638	2	0.3015
Titanium	Ti	47.867	1	0.0777
Scandium	Sc	44.955912	1	0.0729
Francium	Fr	223.019736	1	0.3619
Samarium	Sm	150.36	1	0.2440
Europium	Eu	151.964	1	0.2466
Gadolinium	Gd	157.25	1	0.2551
Lawrencium	Lr	262.1096	1	0.4253
Nobelium	No	259.1010	1	0.4204
Tellurium	Te	127.60	1	0.2070
Antimony	Sb	121.760	1	0.1976
Sulfur	S	32.065	4	0.2081
Molybdenum	Mo	95.96	1	0.1557
Dysprosium	Dy	162.500	6	1.5820
Holmium	Ho	164.93032	4	1.0704
Erbium	Er	167.259	7	1.8997
Mendelevium	Md	258.098431	1	0.4188
Fermium	Fm	257.095105	1	0.4172

Computing molar mass step by step
First, compute the number of each atom in CoPtMn₁₀₀₀W₂RfAuMtFeNb₂TiScFrSmEuGdLrNoTeSbS₄MoDy₆Ho₄Er₇MdFm: Co: 1, Pt: 1, Mn: 1000, W: 2, Rf: 1, Au: 1, Mt: 1, Fe: 1, Nb: 2, Ti: 1, Sc: 1, Fr: 1, Sm: 1, Eu: 1, Gd: 1, Lr: 1, No: 1, Te: 1, Sb: 1, S: 4, Mo: 1, Dy: 6, Ho: 4, Er: 7, Md: 1, Fm: 1 Then, lookup atomic weights for each element in periodic table: Co: 58.933195, Pt: 195.084, Mn: 54.938045, W: 183.84, Rf: 265.1167, Au: 196.966569, Mt: 276.15116, Fe: 55.845, Nb: 92.90638, Ti: 47.867, Sc: 44.955912, Fr: 223.0197359, Sm: 150.36, Eu: 151.964, Gd: 157.25, Lr: 262.10963, No: 259.10103, Te: 127.6, Sb: 121.76, S: 32.065, Mo: 95.96, Dy: 162.5, Ho: 164.93032, Er: 167.259, Md: 258.098431, Fm: 257.095105 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (CoPtMn₁₀₀₀W₂RfAuMtFeNb₂TiScFrSmEuGdLrNoTeSbS₄MoDy₆Ho₄Er₇MdFm) = ∑ Count_i * Weight_i = Count(Co) * Weight(Co) + Count(Pt) * Weight(Pt) + Count(Mn) * Weight(Mn) + Count(W) * Weight(W) + Count(Rf) * Weight(Rf) + Count(Au) * Weight(Au) + Count(Mt) * Weight(Mt) + Count(Fe) * Weight(Fe) + Count(Nb) * Weight(Nb) + Count(Ti) * Weight(Ti) + Count(Sc) * Weight(Sc) + Count(Fr) * Weight(Fr) + Count(Sm) * Weight(Sm) + Count(Eu) * Weight(Eu) + Count(Gd) * Weight(Gd) + Count(Lr) * Weight(Lr) + Count(No) * Weight(No) + Count(Te) * Weight(Te) + Count(Sb) * Weight(Sb) + Count(S) * Weight(S) + Count(Mo) * Weight(Mo) + Count(Dy) * Weight(Dy) + Count(Ho) * Weight(Ho) + Count(Er) * Weight(Er) + Count(Md) * Weight(Md) + Count(Fm) * Weight(Fm) = 1 * 58.933195 + 1 * 195.084 + 1000 * 54.938045 + 2 * 183.84 + 1 * 265.1167 + 1 * 196.966569 + 1 * 276.15116 + 1 * 55.845 + 2 * 92.90638 + 1 * 47.867 + 1 * 44.955912 + 1 * 223.0197359 + 1 * 150.36 + 1 * 151.964 + 1 * 157.25 + 1 * 262.10963 + 1 * 259.10103 + 1 * 127.6 + 1 * 121.76 + 4 * 32.065 + 1 * 95.96 + 6 * 162.5 + 4 * 164.93032 + 7 * 167.259 + 1 * 258.098431 + 1 * 257.095105 = 61630.5695 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is AuCoDy₆Er₇EuFeFmFrGdHo₄LrMdMn₁₀₀₀MoMtNb₂NoPtRfS₄SbScSmTeTiW₂

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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