Ce680Nd380La320Y300SC160Pr95Sm79Gd77Dy60YB53Er38Eu21HO14Tb11 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Ce₆₈₀Nd₃₈₀La₃₂₀Y₃₀₀SC₁₆₀Pr₉₅Sm₇₉Gd₇₇Dy₆₀YB₅₃Er₃₈Eu₂₁HO₁₄Tb₁₁ is 282471.1924 g/mol

Convert between Ce₆₈₀Nd₃₈₀La₃₂₀Y₃₀₀SC₁₆₀Pr₉₅Sm₇₉Gd₇₇Dy₆₀YB₅₃Er₃₈Eu₂₁HO₁₄Tb₁₁ weight and moles

Compound	Moles		Weight, g
Ce₆₈₀Nd₃₈₀La₃₂₀Y₃₀₀SC₁₆₀Pr₉₅Sm₇₉Gd₇₇Dy₆₀YB₅₃Er₃₈Eu₂₁HO₁₄Tb₁₁

Elemental composition of Ce₆₈₀Nd₃₈₀La₃₂₀Y₃₀₀SC₁₆₀Pr₉₅Sm₇₉Gd₇₇Dy₆₀YB₅₃Er₃₈Eu₂₁HO₁₄Tb₁₁

Element	Symbol	Atomic weight	Atoms	Mass percent
Cerium	Ce	140.116	680	33.7305
Neodymium	Nd	144.242	380	19.4044
Lanthanum	La	138.90547	320	15.7360
Yttrium	Y	88.90585	301	9.4738
Sulfur	S	32.065	1	0.0114
Carbon	C	12.0107	160	0.6803
Praseodymium	Pr	140.90765	95	4.7390
Samarium	Sm	150.36	79	4.2052
Gadolinium	Gd	157.25	77	4.2865
Dysprosium	Dy	162.500	60	3.4517
Boron	B	10.811	53	0.2028
Erbium	Er	167.259	38	2.2501
Europium	Eu	151.964	21	1.1298
Hydrogen	H	1.00794	1	0.0004
Oxygen	O	15.9994	14	0.0793
Terbium	Tb	158.92535	11	0.6189

Computing molar mass step by step
First, compute the number of each atom in Ce₆₈₀Nd₃₈₀La₃₂₀Y₃₀₀SC₁₆₀Pr₉₅Sm₇₉Gd₇₇Dy₆₀YB₅₃Er₃₈Eu₂₁HO₁₄Tb₁₁: Ce: 680, Nd: 380, La: 320, Y: 301, S: 1, C: 160, Pr: 95, Sm: 79, Gd: 77, Dy: 60, B: 53, Er: 38, Eu: 21, H: 1, O: 14, Tb: 11 Then, lookup atomic weights for each element in periodic table: Ce: 140.116, Nd: 144.242, La: 138.90547, Y: 88.90585, S: 32.065, C: 12.0107, Pr: 140.90765, Sm: 150.36, Gd: 157.25, Dy: 162.5, B: 10.811, Er: 167.259, Eu: 151.964, H: 1.00794, O: 15.9994, Tb: 158.92535 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Ce₆₈₀Nd₃₈₀La₃₂₀Y₃₀₀SC₁₆₀Pr₉₅Sm₇₉Gd₇₇Dy₆₀YB₅₃Er₃₈Eu₂₁HO₁₄Tb₁₁) = ∑ Count_i * Weight_i = Count(Ce) * Weight(Ce) + Count(Nd) * Weight(Nd) + Count(La) * Weight(La) + Count(Y) * Weight(Y) + Count(S) * Weight(S) + Count(C) * Weight(C) + Count(Pr) * Weight(Pr) + Count(Sm) * Weight(Sm) + Count(Gd) * Weight(Gd) + Count(Dy) * Weight(Dy) + Count(B) * Weight(B) + Count(Er) * Weight(Er) + Count(Eu) * Weight(Eu) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Tb) * Weight(Tb) = 680 * 140.116 + 380 * 144.242 + 320 * 138.90547 + 301 * 88.90585 + 1 * 32.065 + 160 * 12.0107 + 95 * 140.90765 + 79 * 150.36 + 77 * 157.25 + 60 * 162.5 + 53 * 10.811 + 38 * 167.259 + 21 * 151.964 + 1 * 1.00794 + 14 * 15.9994 + 11 * 158.92535 = 282471.1924 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₆₀HB₅₃Ce₆₈₀Dy₆₀Er₃₈Eu₂₁Gd₇₇La₃₂₀Nd₃₈₀O₁₄Pr₉₅SSm₇₉Tb₁₁Y₃₀₁

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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