Sb20Mo19V12Re18Nb14Zn13Yb18Pm20Kr12Y11Cd19Mg12Sg12Ho20U12P14 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Sb₂₀Mo₁₉V₁₂Re₁₈Nb₁₄Zn₁₃Yb₁₈Pm₂₀Kr₁₂Y₁₁Cd₁₉Mg₁₂Sg₁₂Ho₂₀U₁₂P₁₄ is 30638.5173 g/mol

Convert between Sb₂₀Mo₁₉V₁₂Re₁₈Nb₁₄Zn₁₃Yb₁₈Pm₂₀Kr₁₂Y₁₁Cd₁₉Mg₁₂Sg₁₂Ho₂₀U₁₂P₁₄ weight and moles

Compound	Moles		Weight, g
Sb₂₀Mo₁₉V₁₂Re₁₈Nb₁₄Zn₁₃Yb₁₈Pm₂₀Kr₁₂Y₁₁Cd₁₉Mg₁₂Sg₁₂Ho₂₀U₁₂P₁₄

Elemental composition of Sb₂₀Mo₁₉V₁₂Re₁₈Nb₁₄Zn₁₃Yb₁₈Pm₂₀Kr₁₂Y₁₁Cd₁₉Mg₁₂Sg₁₂Ho₂₀U₁₂P₁₄

Element	Symbol	Atomic weight	Atoms	Mass percent
Antimony	Sb	121.760	20	7.9482
Molybdenum	Mo	95.96	19	5.9508
Vanadium	V	50.9415	12	1.9952
Rhenium	Re	186.207	18	10.9396
Niobium	Nb	92.90638	14	4.2453
Zinc	Zn	65.38	13	2.7741
Ytterbium	Yb	173.054	18	10.1668
Promethium	Pm	144.912749	20	9.4595
Krypton	Kr	83.798	12	3.2821
Yttrium	Y	88.90585	11	3.1919
Cadmium	Cd	112.411	19	6.9710
Magnesium	Mg	24.3050	12	0.9519
Seaborgium	Sg	271.1335	12	10.6193
Holmium	Ho	164.93032	20	10.7662
Uranium	U	238.02891	12	9.3227
Phosphorus	P	30.973762	14	1.4153

Computing molar mass step by step
First, compute the number of each atom in Sb₂₀Mo₁₉V₁₂Re₁₈Nb₁₄Zn₁₃Yb₁₈Pm₂₀Kr₁₂Y₁₁Cd₁₉Mg₁₂Sg₁₂Ho₂₀U₁₂P₁₄: Sb: 20, Mo: 19, V: 12, Re: 18, Nb: 14, Zn: 13, Yb: 18, Pm: 20, Kr: 12, Y: 11, Cd: 19, Mg: 12, Sg: 12, Ho: 20, U: 12, P: 14 Then, lookup atomic weights for each element in periodic table: Sb: 121.76, Mo: 95.96, V: 50.9415, Re: 186.207, Nb: 92.90638, Zn: 65.38, Yb: 173.054, Pm: 144.912749, Kr: 83.798, Y: 88.90585, Cd: 112.411, Mg: 24.305, Sg: 271.13347, Ho: 164.93032, U: 238.02891, P: 30.973762 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Sb₂₀Mo₁₉V₁₂Re₁₈Nb₁₄Zn₁₃Yb₁₈Pm₂₀Kr₁₂Y₁₁Cd₁₉Mg₁₂Sg₁₂Ho₂₀U₁₂P₁₄) = ∑ Count_i * Weight_i = Count(Sb) * Weight(Sb) + Count(Mo) * Weight(Mo) + Count(V) * Weight(V) + Count(Re) * Weight(Re) + Count(Nb) * Weight(Nb) + Count(Zn) * Weight(Zn) + Count(Yb) * Weight(Yb) + Count(Pm) * Weight(Pm) + Count(Kr) * Weight(Kr) + Count(Y) * Weight(Y) + Count(Cd) * Weight(Cd) + Count(Mg) * Weight(Mg) + Count(Sg) * Weight(Sg) + Count(Ho) * Weight(Ho) + Count(U) * Weight(U) + Count(P) * Weight(P) = 20 * 121.76 + 19 * 95.96 + 12 * 50.9415 + 18 * 186.207 + 14 * 92.90638 + 13 * 65.38 + 18 * 173.054 + 20 * 144.912749 + 12 * 83.798 + 11 * 88.90585 + 19 * 112.411 + 12 * 24.305 + 12 * 271.13347 + 20 * 164.93032 + 12 * 238.02891 + 14 * 30.973762 = 30638.5173 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Cd₁₉Ho₂₀Kr₁₂Mg₁₂Mo₁₉Nb₁₄P₁₄Pm₂₀Re₁₈Sb₂₀Sg₁₂U₁₂V₁₂Y₁₁Yb₁₈Zn₁₃

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

Please let us know how we can improve this web app.

How to cite?

Choose languageDeutschEnglishEspañol Français Italiano Nederlands Polski Português Русский 中文日本語 한국어