Og245C24O123Ts567H723U1234N967S1990Al345P567Na890Cl456K6789 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Og₂₄₅C₂₄O₁₂₃Ts₅₆₇H₇₂₃U₁₂₃₄N₉₆₇S₁₉₉₀Al₃₄₅P₅₆₇Na₈₉₀Cl₄₅₆K₆₇₈₉ is 868684.6835 g/mol

Convert between Og₂₄₅C₂₄O₁₂₃Ts₅₆₇H₇₂₃U₁₂₃₄N₉₆₇S₁₉₉₀Al₃₄₅P₅₆₇Na₈₉₀Cl₄₅₆K₆₇₈₉ weight and moles

Compound	Moles		Weight, g
Og₂₄₅C₂₄O₁₂₃Ts₅₆₇H₇₂₃U₁₂₃₄N₉₆₇S₁₉₉₀Al₃₄₅P₅₆₇Na₈₉₀Cl₄₅₆K₆₇₈₉

Elemental composition of Og₂₄₅C₂₄O₁₂₃Ts₅₆₇H₇₂₃U₁₂₃₄N₉₆₇S₁₉₉₀Al₃₄₅P₅₆₇Na₈₉₀Cl₄₅₆K₆₇₈₉

Element	Symbol	Atomic weight	Atoms	Mass percent
Oganesson	Og	0.0000000	245	0.0000
Carbon	C	12.0107	24	0.0332
Oxygen	O	15.9994	123	0.2265
Tennessine	Ts	292.208	567	19.0727
Hydrogen	H	1.00794	723	0.0839
Uranium	U	238.02891	1234	33.8129
Nitrogen	N	14.0067	967	1.5592
Sulfur	S	32.065	1990	7.3455
Aluminum	Al	26.9815386	345	1.0716
Phosphorus	P	30.973762	567	2.0217
Sodium	Na	22.98976928	890	2.3554
Chlorine	Cl	35.453	456	1.8610
Potassium	K	39.0983	6789	30.5564

Computing molar mass step by step
First, compute the number of each atom in Og₂₄₅C₂₄O₁₂₃Ts₅₆₇H₇₂₃U₁₂₃₄N₉₆₇S₁₉₉₀Al₃₄₅P₅₆₇Na₈₉₀Cl₄₅₆K₆₇₈₉: Og: 245, C: 24, O: 123, Ts: 567, H: 723, U: 1234, N: 967, S: 1990, Al: 345, P: 567, Na: 890, Cl: 456, K: 6789 Then, lookup atomic weights for each element in periodic table: Og: 0, C: 12.0107, O: 15.9994, Ts: 292.20755, H: 1.00794, U: 238.02891, N: 14.0067, S: 32.065, Al: 26.9815386, P: 30.973762, Na: 22.98976928, Cl: 35.453, K: 39.0983 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Og₂₄₅C₂₄O₁₂₃Ts₅₆₇H₇₂₃U₁₂₃₄N₉₆₇S₁₉₉₀Al₃₄₅P₅₆₇Na₈₉₀Cl₄₅₆K₆₇₈₉) = ∑ Count_i * Weight_i = Count(Og) * Weight(Og) + Count(C) * Weight(C) + Count(O) * Weight(O) + Count(Ts) * Weight(Ts) + Count(H) * Weight(H) + Count(U) * Weight(U) + Count(N) * Weight(N) + Count(S) * Weight(S) + Count(Al) * Weight(Al) + Count(P) * Weight(P) + Count(Na) * Weight(Na) + Count(Cl) * Weight(Cl) + Count(K) * Weight(K) = 245 * 0 + 24 * 12.0107 + 123 * 15.9994 + 567 * 292.20755 + 723 * 1.00794 + 1234 * 238.02891 + 967 * 14.0067 + 1990 * 32.065 + 345 * 26.9815386 + 567 * 30.973762 + 890 * 22.98976928 + 456 * 35.453 + 6789 * 39.0983 = 868684.6835 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₂₄H₇₂₃Al₃₄₅Cl₄₅₆K₆₇₈₉N₉₆₇Na₈₉₀O₁₂₃Og₂₄₅P₅₆₇S₁₉₉₀Ts₅₆₇U₁₂₃₄

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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