Ca2K2Fe2P2S2Ba2Na2Ne2Xe2Al2Ar2Ra2Dy2Fr2Ti2H2O2B2Si2N2Mg2Md2 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Ca₂K₂Fe₂P₂S₂Ba₂Na₂Ne₂Xe₂Al₂Ar₂Ra₂Dy₂Fr₂Ti₂H₂O₂B₂Si₂N₂Mg₂Md₂ is 3177.0104 g/mol

Convert between Ca₂K₂Fe₂P₂S₂Ba₂Na₂Ne₂Xe₂Al₂Ar₂Ra₂Dy₂Fr₂Ti₂H₂O₂B₂Si₂N₂Mg₂Md₂ weight and moles

Compound	Moles		Weight, g
Ca₂K₂Fe₂P₂S₂Ba₂Na₂Ne₂Xe₂Al₂Ar₂Ra₂Dy₂Fr₂Ti₂H₂O₂B₂Si₂N₂Mg₂Md₂

Elemental composition of Ca₂K₂Fe₂P₂S₂Ba₂Na₂Ne₂Xe₂Al₂Ar₂Ra₂Dy₂Fr₂Ti₂H₂O₂B₂Si₂N₂Mg₂Md₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Calcium	Ca	40.078	2	2.5230
Potassium	K	39.0983	2	2.4613
Iron	Fe	55.845	2	3.5156
Phosphorus	P	30.973762	2	1.9499
Sulfur	S	32.065	2	2.0186
Barium	Ba	137.327	2	8.6450
Sodium	Na	22.98976928	2	1.4473
Neon	Ne	20.1797	2	1.2704
Xenon	Xe	131.293	2	8.2652
Aluminum	Al	26.9815386	2	1.6985
Argon	Ar	39.948	2	2.5148
Radium	Ra	226.025410	2	14.2288
Dysprosium	Dy	162.500	2	10.2297
Francium	Fr	223.019736	2	14.0396
Titanium	Ti	47.867	2	3.0133
Hydrogen	H	1.00794	2	0.0635
Oxygen	O	15.9994	2	1.0072
Boron	B	10.811	2	0.6806
Silicon	Si	28.0855	2	1.7680
Nitrogen	N	14.0067	2	0.8818
Magnesium	Mg	24.3050	2	1.5301
Mendelevium	Md	258.098431	2	16.2479

Computing molar mass step by step
First, compute the number of each atom in Ca₂K₂Fe₂P₂S₂Ba₂Na₂Ne₂Xe₂Al₂Ar₂Ra₂Dy₂Fr₂Ti₂H₂O₂B₂Si₂N₂Mg₂Md₂: Ca: 2, K: 2, Fe: 2, P: 2, S: 2, Ba: 2, Na: 2, Ne: 2, Xe: 2, Al: 2, Ar: 2, Ra: 2, Dy: 2, Fr: 2, Ti: 2, H: 2, O: 2, B: 2, Si: 2, N: 2, Mg: 2, Md: 2 Then, lookup atomic weights for each element in periodic table: Ca: 40.078, K: 39.0983, Fe: 55.845, P: 30.973762, S: 32.065, Ba: 137.327, Na: 22.98976928, Ne: 20.1797, Xe: 131.293, Al: 26.9815386, Ar: 39.948, Ra: 226.0254098, Dy: 162.5, Fr: 223.0197359, Ti: 47.867, H: 1.00794, O: 15.9994, B: 10.811, Si: 28.0855, N: 14.0067, Mg: 24.305, Md: 258.098431 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Ca₂K₂Fe₂P₂S₂Ba₂Na₂Ne₂Xe₂Al₂Ar₂Ra₂Dy₂Fr₂Ti₂H₂O₂B₂Si₂N₂Mg₂Md₂) = ∑ Count_i * Weight_i = Count(Ca) * Weight(Ca) + Count(K) * Weight(K) + Count(Fe) * Weight(Fe) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(Ba) * Weight(Ba) + Count(Na) * Weight(Na) + Count(Ne) * Weight(Ne) + Count(Xe) * Weight(Xe) + Count(Al) * Weight(Al) + Count(Ar) * Weight(Ar) + Count(Ra) * Weight(Ra) + Count(Dy) * Weight(Dy) + Count(Fr) * Weight(Fr) + Count(Ti) * Weight(Ti) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(B) * Weight(B) + Count(Si) * Weight(Si) + Count(N) * Weight(N) + Count(Mg) * Weight(Mg) + Count(Md) * Weight(Md) = 2 * 40.078 + 2 * 39.0983 + 2 * 55.845 + 2 * 30.973762 + 2 * 32.065 + 2 * 137.327 + 2 * 22.98976928 + 2 * 20.1797 + 2 * 131.293 + 2 * 26.9815386 + 2 * 39.948 + 2 * 226.0254098 + 2 * 162.5 + 2 * 223.0197359 + 2 * 47.867 + 2 * 1.00794 + 2 * 15.9994 + 2 * 10.811 + 2 * 28.0855 + 2 * 14.0067 + 2 * 24.305 + 2 * 258.098431 = 3177.0104 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Al₂Ar₂B₂Ba₂Ca₂Dy₂Fe₂Fr₂H₂K₂Md₂Mg₂N₂Na₂Ne₂O₂P₂Ra₂S₂Si₂Ti₂Xe₂

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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