C12890H20501N3430O375S08U500Uup901Ga877Es67Hf78Cu898Lu786Eu9 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₁₂₈₉₀H₂₀₅₀₁N₃₄₃₀O₃₇₅S₀₈U₅₀₀Uup₉₀₁Ga₈₇₇Es₆₇Hf₇₈Cu₈₉₈Lu₇₈₆Eu₉ is 896371.6049 g/mol

Convert between C₁₂₈₉₀H₂₀₅₀₁N₃₄₃₀O₃₇₅S₀₈U₅₀₀Uup₉₀₁Ga₈₇₇Es₆₇Hf₇₈Cu₈₉₈Lu₇₈₆Eu₉ weight and moles

Compound	Moles		Weight, g
C₁₂₈₉₀H₂₀₅₀₁N₃₄₃₀O₃₇₅S₀₈U₅₀₀Uup₉₀₁Ga₈₇₇Es₆₇Hf₇₈Cu₈₉₈Lu₇₈₆Eu₉

Elemental composition of C₁₂₈₉₀H₂₀₅₀₁N₃₄₃₀O₃₇₅S₀₈U₅₀₀Uup₉₀₁Ga₈₇₇Es₆₇Hf₇₈Cu₈₉₈Lu₇₈₆Eu₉

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	12890	17.2716
Hydrogen	H	1.00794	20501	2.3053
Nitrogen	N	14.0067	3430	5.3597
Oxygen	O	15.9994	375	0.6693
Sulfur	S	32.065	8	0.0286
Uranium	U	238.02891	500	13.2774
Moscovium	Uup	288.1925	901	28.9681
Gallium	Ga	69.723	877	6.8216
Einsteinium	Es	252.08298	67	1.8842
Hafnium	Hf	178.49	78	1.5532
Copper	Cu	63.546	898	6.3661
Lutetium	Lu	174.9668	786	15.3423
Europium	Eu	151.964	9	0.1526

Computing molar mass step by step
First, compute the number of each atom in C₁₂₈₉₀H₂₀₅₀₁N₃₄₃₀O₃₇₅S₀₈U₅₀₀Uup₉₀₁Ga₈₇₇Es₆₇Hf₇₈Cu₈₉₈Lu₇₈₆Eu₉: C: 12890, H: 20501, N: 3430, O: 375, S: 8, U: 500, Uup: 901, Ga: 877, Es: 67, Hf: 78, Cu: 898, Lu: 786, Eu: 9 Then, lookup atomic weights for each element in periodic table: C: 12.0107, H: 1.00794, N: 14.0067, O: 15.9994, S: 32.065, U: 238.02891, Uup: 288.19249, Ga: 69.723, Es: 252.08298, Hf: 178.49, Cu: 63.546, Lu: 174.9668, Eu: 151.964 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₁₂₈₉₀H₂₀₅₀₁N₃₄₃₀O₃₇₅S₀₈U₅₀₀Uup₉₀₁Ga₈₇₇Es₆₇Hf₇₈Cu₈₉₈Lu₇₈₆Eu₉) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(H) * Weight(H) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(U) * Weight(U) + Count(Uup) * Weight(Uup) + Count(Ga) * Weight(Ga) + Count(Es) * Weight(Es) + Count(Hf) * Weight(Hf) + Count(Cu) * Weight(Cu) + Count(Lu) * Weight(Lu) + Count(Eu) * Weight(Eu) = 12890 * 12.0107 + 20501 * 1.00794 + 3430 * 14.0067 + 375 * 15.9994 + 8 * 32.065 + 500 * 238.02891 + 901 * 288.19249 + 877 * 69.723 + 67 * 252.08298 + 78 * 178.49 + 898 * 63.546 + 786 * 174.9668 + 9 * 151.964 = 896371.6049 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₂₈₉₀H₂₀₅₀₁Cu₈₉₈Es₆₇Eu₉Ga₈₇₇Hf₇₈Lu₇₈₆N₃₄₃₀O₃₇₅S₈U₅₀₀Uup₉₀₁

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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