O4740SI2770Al820Fe410Ca410Na230Mg230K21Ti56H15F9P10Mn9Ba5C5 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of O₄₇₄₀SI₂₇₇₀Al₈₂₀Fe₄₁₀Ca₄₁₀Na₂₃₀Mg₂₃₀K₂₁Ti₅₆H₁₅F₉P₁₀Mn₉Ba₅C₅ is 504964.2810 g/mol

Convert between O₄₇₄₀SI₂₇₇₀Al₈₂₀Fe₄₁₀Ca₄₁₀Na₂₃₀Mg₂₃₀K₂₁Ti₅₆H₁₅F₉P₁₀Mn₉Ba₅C₅ weight and moles

Compound	Moles		Weight, g
O₄₇₄₀SI₂₇₇₀Al₈₂₀Fe₄₁₀Ca₄₁₀Na₂₃₀Mg₂₃₀K₂₁Ti₅₆H₁₅F₉P₁₀Mn₉Ba₅C₅

Elemental composition of O₄₇₄₀SI₂₇₇₀Al₈₂₀Fe₄₁₀Ca₄₁₀Na₂₃₀Mg₂₃₀K₂₁Ti₅₆H₁₅F₉P₁₀Mn₉Ba₅C₅

Element	Symbol	Atomic weight	Atoms	Mass percent
Oxygen	O	15.9994	4740	15.0183
Sulfur	S	32.065	1	0.0063
Iodine	I	126.90447	2770	69.6139
Aluminum	Al	26.9815386	820	4.3815
Iron	Fe	55.845	410	4.5343
Calcium	Ca	40.078	410	3.2541
Sodium	Na	22.98976928	230	1.0471
Magnesium	Mg	24.3050	230	1.1070
Potassium	K	39.0983	21	0.1626
Titanium	Ti	47.867	56	0.5308
Hydrogen	H	1.00794	15	0.0030
Fluorine	F	18.9984032	9	0.0339
Phosphorus	P	30.973762	10	0.0613
Manganese	Mn	54.938045	9	0.0979
Barium	Ba	137.327	5	0.1360
Carbon	C	12.0107	5	0.0119

Computing molar mass step by step
First, compute the number of each atom in O₄₇₄₀SI₂₇₇₀Al₈₂₀Fe₄₁₀Ca₄₁₀Na₂₃₀Mg₂₃₀K₂₁Ti₅₆H₁₅F₉P₁₀Mn₉Ba₅C₅: O: 4740, S: 1, I: 2770, Al: 820, Fe: 410, Ca: 410, Na: 230, Mg: 230, K: 21, Ti: 56, H: 15, F: 9, P: 10, Mn: 9, Ba: 5, C: 5 Then, lookup atomic weights for each element in periodic table: O: 15.9994, S: 32.065, I: 126.90447, Al: 26.9815386, Fe: 55.845, Ca: 40.078, Na: 22.98976928, Mg: 24.305, K: 39.0983, Ti: 47.867, H: 1.00794, F: 18.9984032, P: 30.973762, Mn: 54.938045, Ba: 137.327, C: 12.0107 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (O₄₇₄₀SI₂₇₇₀Al₈₂₀Fe₄₁₀Ca₄₁₀Na₂₃₀Mg₂₃₀K₂₁Ti₅₆H₁₅F₉P₁₀Mn₉Ba₅C₅) = ∑ Count_i * Weight_i = Count(O) * Weight(O) + Count(S) * Weight(S) + Count(I) * Weight(I) + Count(Al) * Weight(Al) + Count(Fe) * Weight(Fe) + Count(Ca) * Weight(Ca) + Count(Na) * Weight(Na) + Count(Mg) * Weight(Mg) + Count(K) * Weight(K) + Count(Ti) * Weight(Ti) + Count(H) * Weight(H) + Count(F) * Weight(F) + Count(P) * Weight(P) + Count(Mn) * Weight(Mn) + Count(Ba) * Weight(Ba) + Count(C) * Weight(C) = 4740 * 15.9994 + 1 * 32.065 + 2770 * 126.90447 + 820 * 26.9815386 + 410 * 55.845 + 410 * 40.078 + 230 * 22.98976928 + 230 * 24.305 + 21 * 39.0983 + 56 * 47.867 + 15 * 1.00794 + 9 * 18.9984032 + 10 * 30.973762 + 9 * 54.938045 + 5 * 137.327 + 5 * 12.0107 = 504964.2810 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₅H₁₅Al₈₂₀Ba₅Ca₄₁₀F₉Fe₄₁₀I₂₇₇₀K₂₁Mg₂₃₀Mn₉Na₂₃₀O₄₇₄₀P₁₀STi₅₆

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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