S2O709H2N2Ar2B8Ba7Kr7Fr4He3Te2CaFeMgMnSOHCN molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of S₂O₇₀₉H₂N₂Ar₂B₈Ba₇Kr₇Fr₄He₃Te₂CaFeMgMnSOHCN is 14561.5354 g/mol

Convert between S₂O₇₀₉H₂N₂Ar₂B₈Ba₇Kr₇Fr₄He₃Te₂CaFeMgMnSOHCN weight and moles

Compound	Moles		Weight, g
S₂O₇₀₉H₂N₂Ar₂B₈Ba₇Kr₇Fr₄He₃Te₂CaFeMgMnSOHCN

Elemental composition of S₂O₇₀₉H₂N₂Ar₂B₈Ba₇Kr₇Fr₄He₃Te₂CaFeMgMnSOHCN

Element	Symbol	Atomic weight	Atoms	Mass percent
Sulfur	S	32.065	3	0.6606
Oxygen	O	15.9994	710	78.0108
Hydrogen	H	1.00794	3	0.0208
Nitrogen	N	14.0067	3	0.2886
Argon	Ar	39.948	2	0.5487
Boron	B	10.811	8	0.5939
Barium	Ba	137.327	7	6.6016
Krypton	Kr	83.798	7	4.0283
Francium	Fr	223.019736	4	6.1263
Helium	He	4.002602	3	0.0825
Tellurium	Te	127.60	2	1.7526
Calcium	Ca	40.078	1	0.2752
Iron	Fe	55.845	1	0.3835
Magnesium	Mg	24.3050	1	0.1669
Manganese	Mn	54.938045	1	0.3773
Carbon	C	12.0107	1	0.0825

Computing molar mass step by step
First, compute the number of each atom in S₂O₇₀₉H₂N₂Ar₂B₈Ba₇Kr₇Fr₄He₃Te₂CaFeMgMnSOHCN: S: 3, O: 710, H: 3, N: 3, Ar: 2, B: 8, Ba: 7, Kr: 7, Fr: 4, He: 3, Te: 2, Ca: 1, Fe: 1, Mg: 1, Mn: 1, C: 1 Then, lookup atomic weights for each element in periodic table: S: 32.065, O: 15.9994, H: 1.00794, N: 14.0067, Ar: 39.948, B: 10.811, Ba: 137.327, Kr: 83.798, Fr: 223.0197359, He: 4.002602, Te: 127.6, Ca: 40.078, Fe: 55.845, Mg: 24.305, Mn: 54.938045, C: 12.0107 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (S₂O₇₀₉H₂N₂Ar₂B₈Ba₇Kr₇Fr₄He₃Te₂CaFeMgMnSOHCN) = ∑ Count_i * Weight_i = Count(S) * Weight(S) + Count(O) * Weight(O) + Count(H) * Weight(H) + Count(N) * Weight(N) + Count(Ar) * Weight(Ar) + Count(B) * Weight(B) + Count(Ba) * Weight(Ba) + Count(Kr) * Weight(Kr) + Count(Fr) * Weight(Fr) + Count(He) * Weight(He) + Count(Te) * Weight(Te) + Count(Ca) * Weight(Ca) + Count(Fe) * Weight(Fe) + Count(Mg) * Weight(Mg) + Count(Mn) * Weight(Mn) + Count(C) * Weight(C) = 3 * 32.065 + 710 * 15.9994 + 3 * 1.00794 + 3 * 14.0067 + 2 * 39.948 + 8 * 10.811 + 7 * 137.327 + 7 * 83.798 + 4 * 223.0197359 + 3 * 4.002602 + 2 * 127.6 + 1 * 40.078 + 1 * 55.845 + 1 * 24.305 + 1 * 54.938045 + 1 * 12.0107 = 14561.5354 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is CH₃Ar₂B₈Ba₇CaFeFr₄He₃Kr₇MgMnN₃O₇₁₀S₃Te₂

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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