H999999Na12Cl12Mg12Ca12F12O12Br12Ni12He12Li12Ra12Ba12Zn12B12 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₉₉₉₉₉₉Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂Zn₁₂B₁₂ is 1016901.8879 g/mol

Convert between H₉₉₉₉₉₉Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂Zn₁₂B₁₂ weight and moles

Compound	Moles		Weight, g
H₉₉₉₉₉₉Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂Zn₁₂B₁₂

Elemental composition of H₉₉₉₉₉₉Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂Zn₁₂B₁₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	999999	99.1186
Sodium	Na	22.98976928	12	0.0271
Chlorine	Cl	35.453	12	0.0418
Magnesium	Mg	24.3050	12	0.0287
Calcium	Ca	40.078	12	0.0473
Fluorine	F	18.9984032	12	0.0224
Oxygen	O	15.9994	12	0.0189
Bromine	Br	79.904	12	0.0943
Nickel	Ni	58.6934	12	0.0693
Helium	He	4.002602	12	0.0047
Lithium	Li	6.941	12	0.0082
Radium	Ra	226.025410	12	0.2667
Barium	Ba	137.327	12	0.1621
Zinc	Zn	65.38	12	0.0772
Boron	B	10.811	12	0.0128

Computing molar mass step by step
First, compute the number of each atom in H₉₉₉₉₉₉Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂Zn₁₂B₁₂: H: 999999, Na: 12, Cl: 12, Mg: 12, Ca: 12, F: 12, O: 12, Br: 12, Ni: 12, He: 12, Li: 12, Ra: 12, Ba: 12, Zn: 12, B: 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, Zn: 65.38, B: 10.811 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₉₉₉₉₉₉Na₁₂Cl₁₂Mg₁₂Ca₁₂F₁₂O₁₂Br₁₂Ni₁₂He₁₂Li₁₂Ra₁₂Ba₁₂Zn₁₂B₁₂) = ∑ 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) + Count(Zn) * Weight(Zn) + Count(B) * Weight(B) = 999999 * 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 + 12 * 65.38 + 12 * 10.811 = 1016901.8879 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is B₁₂Ba₁₂Br₁₂Ca₁₂Cl₁₂F₁₂H₉₉₉₉₉₉He₁₂Li₁₂Mg₁₂Na₁₂Ni₁₂O₁₂Ra₁₂Zn₁₂

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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