H837BZnClCO2S4N7HePMgAuCeCaGaNeMoAg15MnUutMtCoInHgLr molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₈₃₇BZnClCO₂S₄N₇HePMgAuCeCaGaNeMoAg₁₅MnUutMtCoInHgLr is 4717.6519 g/mol

Convert between H₈₃₇BZnClCO₂S₄N₇HePMgAuCeCaGaNeMoAg₁₅MnUutMtCoInHgLr weight and moles

Compound	Moles		Weight, g
H₈₃₇BZnClCO₂S₄N₇HePMgAuCeCaGaNeMoAg₁₅MnUutMtCoInHgLr

Elemental composition of H₈₃₇BZnClCO₂S₄N₇HePMgAuCeCaGaNeMoAg₁₅MnUutMtCoInHgLr

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	837	17.8827
Boron	B	10.811	1	0.2292
Zinc	Zn	65.38	1	1.3859
Chlorine	Cl	35.453	1	0.7515
Carbon	C	12.0107	1	0.2546
Oxygen	O	15.9994	2	0.6783
Sulfur	S	32.065	4	2.7187
Nitrogen	N	14.0067	7	2.0783
Helium	He	4.002602	1	0.0848
Phosphorus	P	30.973762	1	0.6566
Magnesium	Mg	24.3050	1	0.5152
Gold	Au	196.966569	1	4.1751
Cerium	Ce	140.116	1	2.9700
Calcium	Ca	40.078	1	0.8495
Gallium	Ga	69.723	1	1.4779
Neon	Ne	20.1797	1	0.4277
Molybdenum	Mo	95.96	1	2.0341
Silver	Ag	107.8682	15	34.2972
Manganese	Mn	54.938045	1	1.1645
Nihonium	Uut	284.1781	1	6.0237
Meitnerium	Mt	276.1512	1	5.8536
Cobalt	Co	58.933195	1	1.2492
Indium	In	114.818	1	2.4338
Mercury	Hg	200.59	1	4.2519
Lawrencium	Lr	262.1096	1	5.5559

Computing molar mass step by step
First, compute the number of each atom in H₈₃₇BZnClCO₂S₄N₇HePMgAuCeCaGaNeMoAg₁₅MnUutMtCoInHgLr: H: 837, B: 1, Zn: 1, Cl: 1, C: 1, O: 2, S: 4, N: 7, He: 1, P: 1, Mg: 1, Au: 1, Ce: 1, Ca: 1, Ga: 1, Ne: 1, Mo: 1, Ag: 15, Mn: 1, Uut: 1, Mt: 1, Co: 1, In: 1, Hg: 1, Lr: 1 Then, lookup atomic weights for each element in periodic table: H: 1.00794, B: 10.811, Zn: 65.38, Cl: 35.453, C: 12.0107, O: 15.9994, S: 32.065, N: 14.0067, He: 4.002602, P: 30.973762, Mg: 24.305, Au: 196.966569, Ce: 140.116, Ca: 40.078, Ga: 69.723, Ne: 20.1797, Mo: 95.96, Ag: 107.8682, Mn: 54.938045, Uut: 284.17808, Mt: 276.15116, Co: 58.933195, In: 114.818, Hg: 200.59, Lr: 262.10963 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₈₃₇BZnClCO₂S₄N₇HePMgAuCeCaGaNeMoAg₁₅MnUutMtCoInHgLr) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(B) * Weight(B) + Count(Zn) * Weight(Zn) + Count(Cl) * Weight(Cl) + Count(C) * Weight(C) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(N) * Weight(N) + Count(He) * Weight(He) + Count(P) * Weight(P) + Count(Mg) * Weight(Mg) + Count(Au) * Weight(Au) + Count(Ce) * Weight(Ce) + Count(Ca) * Weight(Ca) + Count(Ga) * Weight(Ga) + Count(Ne) * Weight(Ne) + Count(Mo) * Weight(Mo) + Count(Ag) * Weight(Ag) + Count(Mn) * Weight(Mn) + Count(Uut) * Weight(Uut) + Count(Mt) * Weight(Mt) + Count(Co) * Weight(Co) + Count(In) * Weight(In) + Count(Hg) * Weight(Hg) + Count(Lr) * Weight(Lr) = 837 * 1.00794 + 1 * 10.811 + 1 * 65.38 + 1 * 35.453 + 1 * 12.0107 + 2 * 15.9994 + 4 * 32.065 + 7 * 14.0067 + 1 * 4.002602 + 1 * 30.973762 + 1 * 24.305 + 1 * 196.966569 + 1 * 140.116 + 1 * 40.078 + 1 * 69.723 + 1 * 20.1797 + 1 * 95.96 + 15 * 107.8682 + 1 * 54.938045 + 1 * 284.17808 + 1 * 276.15116 + 1 * 58.933195 + 1 * 114.818 + 1 * 200.59 + 1 * 262.10963 = 4717.6519 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is CH₈₃₇Ag₁₅AuBCaCeClCoGaHeHgInLrMgMnMoMtN₇NeO₂PS₄UutZn

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

Please let us know how we can improve this web app.

How to cite?

Choose languageDeutschEnglishEspañol Français Italiano Nederlands Polski Português Русский 中文日本語 한국어