H2He2C2N2Fl2Eu2Y2Au2Ag2Na2S2K2Ba2Be2Mg2Mn2Se2SC2Lu2V2Db2NB2P molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₂He₂C₂N₂Fl₂Eu₂Y₂Au₂Ag₂Na₂S₂K₂Ba₂Be₂Mg₂Mn₂Se₂SC₂Lu₂V₂Db₂NB₂P is 3639.9866 g/mol

Convert between H₂He₂C₂N₂Fl₂Eu₂Y₂Au₂Ag₂Na₂S₂K₂Ba₂Be₂Mg₂Mn₂Se₂SC₂Lu₂V₂Db₂NB₂P weight and moles

Compound	Moles		Weight, g
H₂He₂C₂N₂Fl₂Eu₂Y₂Au₂Ag₂Na₂S₂K₂Ba₂Be₂Mg₂Mn₂Se₂SC₂Lu₂V₂Db₂NB₂P

Elemental composition of H₂He₂C₂N₂Fl₂Eu₂Y₂Au₂Ag₂Na₂S₂K₂Ba₂Be₂Mg₂Mn₂Se₂SC₂Lu₂V₂Db₂NB₂P

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	2	0.0554
Helium	He	4.002602	2	0.2199
Carbon	C	12.0107	4	1.3199
Nitrogen	N	14.0067	3	1.1544
Flerovium	Fl	289.1873	2	15.8895
Europium	Eu	151.964	2	8.3497
Yttrium	Y	88.90585	2	4.8850
Gold	Au	196.966569	2	10.8224
Silver	Ag	107.8682	2	5.9268
Sodium	Na	22.98976928	2	1.2632
Sulfur	S	32.065	3	2.6427
Potassium	K	39.0983	2	2.1483
Barium	Ba	137.327	2	7.5455
Beryllium	Be	9.012182	2	0.4952
Magnesium	Mg	24.3050	2	1.3354
Manganese	Mn	54.938045	2	3.0186
Selenium	Se	78.96	2	4.3385
Lutetium	Lu	174.9668	2	9.6136
Vanadium	V	50.9415	2	2.7990
Dubnium	Db	268.1255	2	14.7322
Boron	B	10.811	2	0.5940
Phosphorus	P	30.973762	1	0.8509

Computing molar mass step by step
First, compute the number of each atom in H₂He₂C₂N₂Fl₂Eu₂Y₂Au₂Ag₂Na₂S₂K₂Ba₂Be₂Mg₂Mn₂Se₂SC₂Lu₂V₂Db₂NB₂P: H: 2, He: 2, C: 4, N: 3, Fl: 2, Eu: 2, Y: 2, Au: 2, Ag: 2, Na: 2, S: 3, K: 2, Ba: 2, Be: 2, Mg: 2, Mn: 2, Se: 2, Lu: 2, V: 2, Db: 2, B: 2, P: 1 Then, lookup atomic weights for each element in periodic table: H: 1.00794, He: 4.002602, C: 12.0107, N: 14.0067, Fl: 289.18728, Eu: 151.964, Y: 88.90585, Au: 196.966569, Ag: 107.8682, Na: 22.98976928, S: 32.065, K: 39.0983, Ba: 137.327, Be: 9.012182, Mg: 24.305, Mn: 54.938045, Se: 78.96, Lu: 174.9668, V: 50.9415, Db: 268.12545, B: 10.811, P: 30.973762 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₂He₂C₂N₂Fl₂Eu₂Y₂Au₂Ag₂Na₂S₂K₂Ba₂Be₂Mg₂Mn₂Se₂SC₂Lu₂V₂Db₂NB₂P) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(He) * Weight(He) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(Fl) * Weight(Fl) + Count(Eu) * Weight(Eu) + Count(Y) * Weight(Y) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(Na) * Weight(Na) + Count(S) * Weight(S) + Count(K) * Weight(K) + Count(Ba) * Weight(Ba) + Count(Be) * Weight(Be) + Count(Mg) * Weight(Mg) + Count(Mn) * Weight(Mn) + Count(Se) * Weight(Se) + Count(Lu) * Weight(Lu) + Count(V) * Weight(V) + Count(Db) * Weight(Db) + Count(B) * Weight(B) + Count(P) * Weight(P) = 2 * 1.00794 + 2 * 4.002602 + 4 * 12.0107 + 3 * 14.0067 + 2 * 289.18728 + 2 * 151.964 + 2 * 88.90585 + 2 * 196.966569 + 2 * 107.8682 + 2 * 22.98976928 + 3 * 32.065 + 2 * 39.0983 + 2 * 137.327 + 2 * 9.012182 + 2 * 24.305 + 2 * 54.938045 + 2 * 78.96 + 2 * 174.9668 + 2 * 50.9415 + 2 * 268.12545 + 2 * 10.811 + 1 * 30.973762 = 3639.9866 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₄H₂Ag₂Au₂B₂Ba₂Be₂Db₂Eu₂Fl₂He₂K₂Lu₂Mg₂Mn₂N₃Na₂PS₃Se₂V₂Y₂

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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