C41N9O5B29Mg22Na14Xe8LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₄₁N₉O₅B₂₉Mg₂₂Na₁₄Xe₈LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm is 5303.6695 g/mol

Convert between C₄₁N₉O₅B₂₉Mg₂₂Na₁₄Xe₈LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm weight and moles

Compound	Moles		Weight, g
C₄₁N₉O₅B₂₉Mg₂₂Na₁₄Xe₈LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm

Elemental composition of C₄₁N₉O₅B₂₉Mg₂₂Na₁₄Xe₈LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	41	9.2849
Nitrogen	N	14.0067	9	2.3769
Oxygen	O	15.9994	5	1.5083
Boron	B	10.811	29	5.9114
Magnesium	Mg	24.3050	22	10.0819
Sodium	Na	22.98976928	14	6.0686
Xenon	Xe	131.293	8	19.8041
Lithium	Li	6.941	1	0.1309
Beryllium	Be	9.012182	1	0.1699
Potassium	K	39.0983	1	0.7372
Calcium	Ca	40.078	1	0.7557
Rubidium	Rb	85.4678	1	1.6115
Strontium	Sr	87.62	1	1.6521
Cesium	Cs	132.9054519	1	2.5059
Barium	Ba	137.327	1	2.5893
Lanthanum	La	138.90547	1	2.6190
Cerium	Ce	140.116	1	2.6419
Praseodymium	Pr	140.90765	1	2.6568
Neodymium	Nd	144.242	1	2.7197
Samarium	Sm	150.36	1	2.8350
Europium	Eu	151.964	1	2.8653
Gadolinium	Gd	157.25	1	2.9649
Terbium	Tb	158.92535	1	2.9965
Dysprosium	Dy	162.500	1	3.0639
Holmium	Ho	164.93032	1	3.1097
Erbium	Er	167.259	1	3.1536
Thulium	Tm	168.93421	1	3.1852

Computing molar mass step by step
First, compute the number of each atom in C₄₁N₉O₅B₂₉Mg₂₂Na₁₄Xe₈LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm: C: 41, N: 9, O: 5, B: 29, Mg: 22, Na: 14, Xe: 8, Li: 1, Be: 1, K: 1, Ca: 1, Rb: 1, Sr: 1, Cs: 1, Ba: 1, La: 1, Ce: 1, Pr: 1, Nd: 1, Sm: 1, Eu: 1, Gd: 1, Tb: 1, Dy: 1, Ho: 1, Er: 1, Tm: 1 Then, lookup atomic weights for each element in periodic table: C: 12.0107, N: 14.0067, O: 15.9994, B: 10.811, Mg: 24.305, Na: 22.98976928, Xe: 131.293, Li: 6.941, Be: 9.012182, K: 39.0983, Ca: 40.078, Rb: 85.4678, Sr: 87.62, Cs: 132.9054519, Ba: 137.327, La: 138.90547, Ce: 140.116, Pr: 140.90765, Nd: 144.242, Sm: 150.36, Eu: 151.964, Gd: 157.25, Tb: 158.92535, Dy: 162.5, Ho: 164.93032, Er: 167.259, Tm: 168.93421 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₄₁N₉O₅B₂₉Mg₂₂Na₁₄Xe₈LiBeKCaRbSrCsBaLaCePrNdSmEuGdTbDyHoErTm) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(B) * Weight(B) + Count(Mg) * Weight(Mg) + Count(Na) * Weight(Na) + Count(Xe) * Weight(Xe) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(Rb) * Weight(Rb) + Count(Sr) * Weight(Sr) + Count(Cs) * Weight(Cs) + Count(Ba) * Weight(Ba) + Count(La) * Weight(La) + Count(Ce) * Weight(Ce) + Count(Pr) * Weight(Pr) + Count(Nd) * Weight(Nd) + Count(Sm) * Weight(Sm) + Count(Eu) * Weight(Eu) + Count(Gd) * Weight(Gd) + Count(Tb) * Weight(Tb) + Count(Dy) * Weight(Dy) + Count(Ho) * Weight(Ho) + Count(Er) * Weight(Er) + Count(Tm) * Weight(Tm) = 41 * 12.0107 + 9 * 14.0067 + 5 * 15.9994 + 29 * 10.811 + 22 * 24.305 + 14 * 22.98976928 + 8 * 131.293 + 1 * 6.941 + 1 * 9.012182 + 1 * 39.0983 + 1 * 40.078 + 1 * 85.4678 + 1 * 87.62 + 1 * 132.9054519 + 1 * 137.327 + 1 * 138.90547 + 1 * 140.116 + 1 * 140.90765 + 1 * 144.242 + 1 * 150.36 + 1 * 151.964 + 1 * 157.25 + 1 * 158.92535 + 1 * 162.5 + 1 * 164.93032 + 1 * 167.259 + 1 * 168.93421 = 5303.6695 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₄₁B₂₉BaBeCaCeCsDyErEuGdHoKLaLiMg₂₂N₉Na₁₄NdO₅PrRbSmSrTbTmXe₈

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, 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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