Ca3K3O5Ba5P9H644Mn4Fe7Uub18Rf16Rn12Xe14Ar15Pt14Hg8Fr60Ra50 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Ca₃K₃O₅Ba₅P₉H₆₄₄Mn₄Fe₇Uub₁₈Rf₁₆Rn₁₂Xe₁₄Ar₁₅Pt₁₄Hg₈Fr₆₀Ra₅₀ is 45905.2663 g/mol

Convert between Ca₃K₃O₅Ba₅P₉H₆₄₄Mn₄Fe₇Uub₁₈Rf₁₆Rn₁₂Xe₁₄Ar₁₅Pt₁₄Hg₈Fr₆₀Ra₅₀ weight and moles

Compound	Moles		Weight, g
Ca₃K₃O₅Ba₅P₉H₆₄₄Mn₄Fe₇Uub₁₈Rf₁₆Rn₁₂Xe₁₄Ar₁₅Pt₁₄Hg₈Fr₆₀Ra₅₀

Elemental composition of Ca₃K₃O₅Ba₅P₉H₆₄₄Mn₄Fe₇Uub₁₈Rf₁₆Rn₁₂Xe₁₄Ar₁₅Pt₁₄Hg₈Fr₆₀Ra₅₀

Element	Symbol	Atomic weight	Atoms	Mass percent
Calcium	Ca	40.078	3	0.2619
Potassium	K	39.0983	3	0.2555
Oxygen	O	15.9994	5	0.1743
Barium	Ba	137.327	5	1.4958
Phosphorus	P	30.973762	9	0.6073
Hydrogen	H	1.00794	644	1.4140
Manganese	Mn	54.938045	4	0.4787
Iron	Fe	55.845	7	0.8516
Copernicium	Uub	285.1741	18	11.1820
Rutherfordium	Rf	265.1167	16	9.2405
Radon	Rn	210.990601	12	5.5155
Xenon	Xe	131.293	14	4.0041
Argon	Ar	39.948	15	1.3053
Platinum	Pt	195.084	14	5.9496
Mercury	Hg	200.59	8	3.4957
Francium	Fr	223.019736	60	29.1496
Radium	Ra	226.025410	50	24.6187

Computing molar mass step by step
First, compute the number of each atom in Ca₃K₃O₅Ba₅P₉H₆₄₄Mn₄Fe₇Uub₁₈Rf₁₆Rn₁₂Xe₁₄Ar₁₅Pt₁₄Hg₈Fr₆₀Ra₅₀: Ca: 3, K: 3, O: 5, Ba: 5, P: 9, H: 644, Mn: 4, Fe: 7, Uub: 18, Rf: 16, Rn: 12, Xe: 14, Ar: 15, Pt: 14, Hg: 8, Fr: 60, Ra: 50 Then, lookup atomic weights for each element in periodic table: Ca: 40.078, K: 39.0983, O: 15.9994, Ba: 137.327, P: 30.973762, H: 1.00794, Mn: 54.938045, Fe: 55.845, Uub: 285.17411, Rf: 265.1167, Rn: 210.990601, Xe: 131.293, Ar: 39.948, Pt: 195.084, Hg: 200.59, Fr: 223.0197359, Ra: 226.0254098 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Ca₃K₃O₅Ba₅P₉H₆₄₄Mn₄Fe₇Uub₁₈Rf₁₆Rn₁₂Xe₁₄Ar₁₅Pt₁₄Hg₈Fr₆₀Ra₅₀) = ∑ Count_i * Weight_i = Count(Ca) * Weight(Ca) + Count(K) * Weight(K) + Count(O) * Weight(O) + Count(Ba) * Weight(Ba) + Count(P) * Weight(P) + Count(H) * Weight(H) + Count(Mn) * Weight(Mn) + Count(Fe) * Weight(Fe) + Count(Uub) * Weight(Uub) + Count(Rf) * Weight(Rf) + Count(Rn) * Weight(Rn) + Count(Xe) * Weight(Xe) + Count(Ar) * Weight(Ar) + Count(Pt) * Weight(Pt) + Count(Hg) * Weight(Hg) + Count(Fr) * Weight(Fr) + Count(Ra) * Weight(Ra) = 3 * 40.078 + 3 * 39.0983 + 5 * 15.9994 + 5 * 137.327 + 9 * 30.973762 + 644 * 1.00794 + 4 * 54.938045 + 7 * 55.845 + 18 * 285.17411 + 16 * 265.1167 + 12 * 210.990601 + 14 * 131.293 + 15 * 39.948 + 14 * 195.084 + 8 * 200.59 + 60 * 223.0197359 + 50 * 226.0254098 = 45905.2663 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ar₁₅Ba₅Ca₃Fe₇Fr₆₀H₆₄₄Hg₈K₃Mn₄O₅P₉Pt₁₄Ra₅₀Rf₁₆Rn₁₂Uub₁₈Xe₁₄

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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