Fe87496Si42707Al4532Mg198S75Ca107Mn1692P98K1146Na162Ti113V10Cu13O226841 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Fe₈₇₄₉₆Si₄₂₇₀₇Al₄₅₃₂Mg₁₉₈S₇₅Ca₁₀₇Mn₁₆₉₂P₉₈K₁₁₄₆Na₁₆₂Ti₁₁₃V₁₀Cu₁₃O₂₂₆₈₄₁ is 10000033.4871 g/mol

Convert between Fe₈₇₄₉₆Si₄₂₇₀₇Al₄₅₃₂Mg₁₉₈S₇₅Ca₁₀₇Mn₁₆₉₂P₉₈K₁₁₄₆Na₁₆₂Ti₁₁₃V₁₀Cu₁₃O₂₂₆₈₄₁ weight and moles

Compound	Moles		Weight, g
Fe₈₇₄₉₆Si₄₂₇₀₇Al₄₅₃₂Mg₁₉₈S₇₅Ca₁₀₇Mn₁₆₉₂P₉₈K₁₁₄₆Na₁₆₂Ti₁₁₃V₁₀Cu₁₃O₂₂₆₈₄₁

Elemental composition of Fe₈₇₄₉₆Si₄₂₇₀₇Al₄₅₃₂Mg₁₉₈S₇₅Ca₁₀₇Mn₁₆₉₂P₉₈K₁₁₄₆Na₁₆₂Ti₁₁₃V₁₀Cu₁₃O₂₂₆₈₄₁

Element	Symbol	Atomic weight	Atoms	Mass percent
Iron	Fe	55.845	87496	48.8620
Silicon	Si	28.0855	42707	11.9944
Aluminum	Al	26.9815386	4532	1.2228
Magnesium	Mg	24.3050	198	0.0481
Sulfur	S	32.065	75	0.0240
Calcium	Ca	40.078	107	0.0429
Manganese	Mn	54.938045	1692	0.9295
Phosphorus	P	30.973762	98	0.0304
Potassium	K	39.0983	1146	0.4481
Sodium	Na	22.98976928	162	0.0372
Titanium	Ti	47.867	113	0.0541
Vanadium	V	50.9415	10	0.0051
Copper	Cu	63.546	13	0.0083
Oxygen	O	15.9994	226841	36.2931

Computing molar mass step by step
First, compute the number of each atom in Fe₈₇₄₉₆Si₄₂₇₀₇Al₄₅₃₂Mg₁₉₈S₇₅Ca₁₀₇Mn₁₆₉₂P₉₈K₁₁₄₆Na₁₆₂Ti₁₁₃V₁₀Cu₁₃O₂₂₆₈₄₁: Fe: 87496, Si: 42707, Al: 4532, Mg: 198, S: 75, Ca: 107, Mn: 1692, P: 98, K: 1146, Na: 162, Ti: 113, V: 10, Cu: 13, O: 226841 Then, lookup atomic weights for each element in periodic table: Fe: 55.845, Si: 28.0855, Al: 26.9815386, Mg: 24.305, S: 32.065, Ca: 40.078, Mn: 54.938045, P: 30.973762, K: 39.0983, Na: 22.98976928, Ti: 47.867, V: 50.9415, Cu: 63.546, O: 15.9994 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Fe₈₇₄₉₆Si₄₂₇₀₇Al₄₅₃₂Mg₁₉₈S₇₅Ca₁₀₇Mn₁₆₉₂P₉₈K₁₁₄₆Na₁₆₂Ti₁₁₃V₁₀Cu₁₃O₂₂₆₈₄₁) = ∑ Count_i * Weight_i = Count(Fe) * Weight(Fe) + Count(Si) * Weight(Si) + Count(Al) * Weight(Al) + Count(Mg) * Weight(Mg) + Count(S) * Weight(S) + Count(Ca) * Weight(Ca) + Count(Mn) * Weight(Mn) + Count(P) * Weight(P) + Count(K) * Weight(K) + Count(Na) * Weight(Na) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) + Count(Cu) * Weight(Cu) + Count(O) * Weight(O) = 87496 * 55.845 + 42707 * 28.0855 + 4532 * 26.9815386 + 198 * 24.305 + 75 * 32.065 + 107 * 40.078 + 1692 * 54.938045 + 98 * 30.973762 + 1146 * 39.0983 + 162 * 22.98976928 + 113 * 47.867 + 10 * 50.9415 + 13 * 63.546 + 226841 * 15.9994 = 10000033.4871 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Al₄₅₃₂Ca₁₀₇Cu₁₃Fe₈₇₄₉₆K₁₁₄₆Mg₁₉₈Mn₁₆₉₂Na₁₆₂O₂₂₆₈₄₁P₉₈S₇₅Si₄₂₇₀₇Ti₁₁₃V₁₀

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, 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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