H99999999999Na12Cl12Mg12Ca12F12O12Br12Ni12He12Li12Ra12Ba12 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H_99999999999Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂ is 100794008047.5959 g/mol

Convert between H_99999999999Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂ weight and moles

Compound	Moles		Weight, g
H_99999999999Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂

Elemental composition of H_99999999999Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	99999999999	100.0000
Sodium	Na	22.98976928	12	0.0000
Chlorine	Cl	35.453	12	0.0000
Magnesium	Mg	24.3050	12	0.0000
Calcium	Ca	40.078	12	0.0000
Fluorine	F	18.9984032	12	0.0000
Oxygen	O	15.9994	12	0.0000
Bromine	Br	79.904	12	0.0000
Nickel	Ni	58.6934	12	0.0000
Helium	He	4.002602	12	0.0000
Lithium	Li	6.941	12	0.0000
Radium	Ra	226.025410	12	0.0000
Barium	Ba	137.327	12	0.0000

Computing molar mass step by step
First, compute the number of each atom in H_99999999999Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂: H: 99999999999, Na: 12, Cl: 12, Mg: 12, Ca: 12, F: 12, O: 12, Br: 12, Ni: 12, He: 12, Li: 12, Ra: 12, Ba: 12 Then, lookup atomic weights for each element in periodic table: H: 1.00794, Na: 22.98976928, Cl: 35.453, Mg: 24.305, Ca: 40.078, F: 18.9984032, O: 15.9994, Br: 79.904, Ni: 58.6934, He: 4.002602, Li: 6.941, Ra: 226.0254098, Ba: 137.327 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H_99999999999Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(Na) * Weight(Na) + Count(Cl) * Weight(Cl) + Count(Mg) * Weight(Mg) + Count(Ca) * Weight(Ca) + Count(F) * Weight(F) + Count(O) * Weight(O) + Count(Br) * Weight(Br) + Count(Ni) * Weight(Ni) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Ra) * Weight(Ra) + Count(Ba) * Weight(Ba) = 99999999999 * 1.00794 + 12 * 22.98976928 + 12 * 35.453 + 12 * 24.305 + 12 * 40.078 + 12 * 18.9984032 + 12 * 15.9994 + 12 * 79.904 + 12 * 58.6934 + 12 * 4.002602 + 12 * 6.941 + 12 * 226.0254098 + 12 * 137.327 = 100794008047.5959 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ba₁₂Br₁₂Ca₁₂Cl₁₂F₁₂H_99999999999He₁₂Li₁₂Mg₁₂Na₁₂Ni₁₂O₁₂Ra₁₂

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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