P19Co3H12NoOH3Fe2I8S3Cl4Na83Mg92SiO3Co8K3HgSiHe7K910282 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of P₁₉Co₃H₁₂NoOH₃Fe₂I₈S₃Cl₄Na₈₃Mg₉₂SiO₃Co₈K₃HgSiHe₇K₉₁₀₂₈₂ is 35597964.9227 g/mol

Convert between P₁₉Co₃H₁₂NoOH₃Fe₂I₈S₃Cl₄Na₈₃Mg₉₂SiO₃Co₈K₃HgSiHe₇K₉₁₀₂₈₂ weight and moles

Compound	Moles		Weight, g
P₁₉Co₃H₁₂NoOH₃Fe₂I₈S₃Cl₄Na₈₃Mg₉₂SiO₃Co₈K₃HgSiHe₇K₉₁₀₂₈₂

Elemental composition of P₁₉Co₃H₁₂NoOH₃Fe₂I₈S₃Cl₄Na₈₃Mg₉₂SiO₃Co₈K₃HgSiHe₇K₉₁₀₂₈₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Phosphorus	P	30.973762	19	0.0017
Cobalt	Co	58.933195	11	0.0018
Hydrogen	H	1.00794	15	0.0000
Nobelium	No	259.1010	1	0.0007
Oxygen	O	15.9994	4	0.0002
Iron	Fe	55.845	2	0.0003
Iodine	I	126.90447	8	0.0029
Sulfur	S	32.065	3	0.0003
Chlorine	Cl	35.453	4	0.0004
Sodium	Na	22.98976928	83	0.0054
Magnesium	Mg	24.3050	92	0.0063
Silicon	Si	28.0855	2	0.0002
Potassium	K	39.0983	910285	99.9793
Mercury	Hg	200.59	1	0.0006
Helium	He	4.002602	7	0.0001

Computing molar mass step by step
First, compute the number of each atom in P₁₉Co₃H₁₂NoOH₃Fe₂I₈S₃Cl₄Na₈₃Mg₉₂SiO₃Co₈K₃HgSiHe₇K₉₁₀₂₈₂: P: 19, Co: 11, H: 15, No: 1, O: 4, Fe: 2, I: 8, S: 3, Cl: 4, Na: 83, Mg: 92, Si: 2, K: 910285, Hg: 1, He: 7 Then, lookup atomic weights for each element in periodic table: P: 30.973762, Co: 58.933195, H: 1.00794, No: 259.10103, O: 15.9994, Fe: 55.845, I: 126.90447, S: 32.065, Cl: 35.453, Na: 22.98976928, Mg: 24.305, Si: 28.0855, K: 39.0983, Hg: 200.59, He: 4.002602 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (P₁₉Co₃H₁₂NoOH₃Fe₂I₈S₃Cl₄Na₈₃Mg₉₂SiO₃Co₈K₃HgSiHe₇K₉₁₀₂₈₂) = ∑ Count_i * Weight_i = Count(P) * Weight(P) + Count(Co) * Weight(Co) + Count(H) * Weight(H) + Count(No) * Weight(No) + Count(O) * Weight(O) + Count(Fe) * Weight(Fe) + Count(I) * Weight(I) + Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(Na) * Weight(Na) + Count(Mg) * Weight(Mg) + Count(Si) * Weight(Si) + Count(K) * Weight(K) + Count(Hg) * Weight(Hg) + Count(He) * Weight(He) = 19 * 30.973762 + 11 * 58.933195 + 15 * 1.00794 + 1 * 259.10103 + 4 * 15.9994 + 2 * 55.845 + 8 * 126.90447 + 3 * 32.065 + 4 * 35.453 + 83 * 22.98976928 + 92 * 24.305 + 2 * 28.0855 + 910285 * 39.0983 + 1 * 200.59 + 7 * 4.002602 = 35597964.9227 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Cl₄Co₁₁Fe₂H₁₅He₇HgI₈K₉₁₀₂₈₅Mg₉₂Na₈₃NoO₄P₁₉S₃Si₂

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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