Si377620Al45320Mg1115S257Ca1070Mn13582P304K11460Na1620V100Cu130Ti1130O1162200 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Si₃₇₇₆₂₀Al₄₅₃₂₀Mg₁₁₁₅S₂₅₇Ca₁₀₇₀Mn₁₃₅₈₂P₃₀₄K₁₁₄₆₀Na₁₆₂₀V₁₀₀Cu₁₃₀Ti₁₁₃₀O_1162200 is 31809516.0944 g/mol

Convert between Si₃₇₇₆₂₀Al₄₅₃₂₀Mg₁₁₁₅S₂₅₇Ca₁₀₇₀Mn₁₃₅₈₂P₃₀₄K₁₁₄₆₀Na₁₆₂₀V₁₀₀Cu₁₃₀Ti₁₁₃₀O_1162200 weight and moles

Compound	Moles		Weight, g
Si₃₇₇₆₂₀Al₄₅₃₂₀Mg₁₁₁₅S₂₅₇Ca₁₀₇₀Mn₁₃₅₈₂P₃₀₄K₁₁₄₆₀Na₁₆₂₀V₁₀₀Cu₁₃₀Ti₁₁₃₀O_1162200

Elemental composition of Si₃₇₇₆₂₀Al₄₅₃₂₀Mg₁₁₁₅S₂₅₇Ca₁₀₇₀Mn₁₃₅₈₂P₃₀₄K₁₁₄₆₀Na₁₆₂₀V₁₀₀Cu₁₃₀Ti₁₁₃₀O_1162200

Element	Symbol	Atomic weight	Atoms	Mass percent
Silicon	Si	28.0855	377620	33.3411
Aluminum	Al	26.9815386	45320	3.8441
Magnesium	Mg	24.3050	1115	0.0852
Sulfur	S	32.065	257	0.0259
Calcium	Ca	40.078	1070	0.1348
Manganese	Mn	54.938045	13582	2.3457
Phosphorus	P	30.973762	304	0.0296
Potassium	K	39.0983	11460	1.4086
Sodium	Na	22.98976928	1620	0.1171
Vanadium	V	50.9415	100	0.0160
Copper	Cu	63.546	130	0.0260
Titanium	Ti	47.867	1130	0.1700
Oxygen	O	15.9994	1162200	58.4558

Computing molar mass step by step
First, compute the number of each atom in Si₃₇₇₆₂₀Al₄₅₃₂₀Mg₁₁₁₅S₂₅₇Ca₁₀₇₀Mn₁₃₅₈₂P₃₀₄K₁₁₄₆₀Na₁₆₂₀V₁₀₀Cu₁₃₀Ti₁₁₃₀O_1162200: Si: 377620, Al: 45320, Mg: 1115, S: 257, Ca: 1070, Mn: 13582, P: 304, K: 11460, Na: 1620, V: 100, Cu: 130, Ti: 1130, O: 1162200 Then, lookup atomic weights for each element in periodic table: 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, V: 50.9415, Cu: 63.546, Ti: 47.867, O: 15.9994 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Si₃₇₇₆₂₀Al₄₅₃₂₀Mg₁₁₁₅S₂₅₇Ca₁₀₇₀Mn₁₃₅₈₂P₃₀₄K₁₁₄₆₀Na₁₆₂₀V₁₀₀Cu₁₃₀Ti₁₁₃₀O_1162200) = ∑ Count_i * Weight_i = 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(V) * Weight(V) + Count(Cu) * Weight(Cu) + Count(Ti) * Weight(Ti) + Count(O) * Weight(O) = 377620 * 28.0855 + 45320 * 26.9815386 + 1115 * 24.305 + 257 * 32.065 + 1070 * 40.078 + 13582 * 54.938045 + 304 * 30.973762 + 11460 * 39.0983 + 1620 * 22.98976928 + 100 * 50.9415 + 130 * 63.546 + 1130 * 47.867 + 1162200 * 15.9994 = 31809516.0944 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Al₄₅₃₂₀Ca₁₀₇₀Cu₁₃₀K₁₁₄₆₀Mg₁₁₁₅Mn₁₃₅₈₂Na₁₆₂₀O_1162200P₃₀₄S₂₅₇Si₃₇₇₆₂₀Ti₁₁₃₀V₁₀₀

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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