C141H17O24N17S2P7Cl17F74Br5I4Na7Xe24U19Zr18W7Sb29He85Ba7Cs19 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₁₄₁H₁₇O₂₄N₁₇S₂P₇Cl₁₇F₇₄Br₅I₄Na₇Xe₂₄U₁₉Zr₁₈W₇Sb₂₉He₈₅Ba₇Cs₁₉ is 23650.5857 g/mol

Convert between C₁₄₁H₁₇O₂₄N₁₇S₂P₇Cl₁₇F₇₄Br₅I₄Na₇Xe₂₄U₁₉Zr₁₈W₇Sb₂₉He₈₅Ba₇Cs₁₉ weight and moles

Compound	Moles		Weight, g
C₁₄₁H₁₇O₂₄N₁₇S₂P₇Cl₁₇F₇₄Br₅I₄Na₇Xe₂₄U₁₉Zr₁₈W₇Sb₂₉He₈₅Ba₇Cs₁₉

Elemental composition of C₁₄₁H₁₇O₂₄N₁₇S₂P₇Cl₁₇F₇₄Br₅I₄Na₇Xe₂₄U₁₉Zr₁₈W₇Sb₂₉He₈₅Ba₇Cs₁₉

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	141	7.1605
Hydrogen	H	1.00794	17	0.0725
Oxygen	O	15.9994	24	1.6236
Nitrogen	N	14.0067	17	1.0068
Sulfur	S	32.065	2	0.2712
Phosphorus	P	30.973762	7	0.9167
Chlorine	Cl	35.453	17	2.5484
Fluorine	F	18.9984032	74	5.9444
Bromine	Br	79.904	5	1.6893
Iodine	I	126.90447	4	2.1463
Sodium	Na	22.98976928	7	0.6804
Xenon	Xe	131.293	24	13.3233
Uranium	U	238.02891	19	19.1224
Zirconium	Zr	91.224	18	6.9429
Tungsten	W	183.84	7	5.4412
Antimony	Sb	121.760	29	14.9300
Helium	He	4.002602	85	1.4385
Barium	Ba	137.327	7	4.0645
Cesium	Cs	132.9054519	19	10.6771

Computing molar mass step by step
First, compute the number of each atom in C₁₄₁H₁₇O₂₄N₁₇S₂P₇Cl₁₇F₇₄Br₅I₄Na₇Xe₂₄U₁₉Zr₁₈W₇Sb₂₉He₈₅Ba₇Cs₁₉: C: 141, H: 17, O: 24, N: 17, S: 2, P: 7, Cl: 17, F: 74, Br: 5, I: 4, Na: 7, Xe: 24, U: 19, Zr: 18, W: 7, Sb: 29, He: 85, Ba: 7, Cs: 19 Then, lookup atomic weights for each element in periodic table: C: 12.0107, H: 1.00794, O: 15.9994, N: 14.0067, S: 32.065, P: 30.973762, Cl: 35.453, F: 18.9984032, Br: 79.904, I: 126.90447, Na: 22.98976928, Xe: 131.293, U: 238.02891, Zr: 91.224, W: 183.84, Sb: 121.76, He: 4.002602, Ba: 137.327, Cs: 132.9054519 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₁₄₁H₁₇O₂₄N₁₇S₂P₇Cl₁₇F₇₄Br₅I₄Na₇Xe₂₄U₁₉Zr₁₈W₇Sb₂₉He₈₅Ba₇Cs₁₉) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(S) * Weight(S) + Count(P) * Weight(P) + Count(Cl) * Weight(Cl) + Count(F) * Weight(F) + Count(Br) * Weight(Br) + Count(I) * Weight(I) + Count(Na) * Weight(Na) + Count(Xe) * Weight(Xe) + Count(U) * Weight(U) + Count(Zr) * Weight(Zr) + Count(W) * Weight(W) + Count(Sb) * Weight(Sb) + Count(He) * Weight(He) + Count(Ba) * Weight(Ba) + Count(Cs) * Weight(Cs) = 141 * 12.0107 + 17 * 1.00794 + 24 * 15.9994 + 17 * 14.0067 + 2 * 32.065 + 7 * 30.973762 + 17 * 35.453 + 74 * 18.9984032 + 5 * 79.904 + 4 * 126.90447 + 7 * 22.98976928 + 24 * 131.293 + 19 * 238.02891 + 18 * 91.224 + 7 * 183.84 + 29 * 121.76 + 85 * 4.002602 + 7 * 137.327 + 19 * 132.9054519 = 23650.5857 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₄₁H₁₇Ba₇Br₅Cl₁₇Cs₁₉F₇₄He₈₅I₄N₁₇Na₇O₂₄P₇S₂Sb₂₉U₁₉W₇Xe₂₄Zr₁₈

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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