HeO2Ne1H3BeN3AuAg3Li2Ca4C3Cu2Zn6Fe3Lr5 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of HeO₂Ne₁H₃BeN₃AuAg₃Li₂Ca₄C₃Cu₂Zn₆Fe₃Lr₅ is 2838.4896 g/mol

Convert between HeO₂Ne₁H₃BeN₃AuAg₃Li₂Ca₄C₃Cu₂Zn₆Fe₃Lr₅ weight and moles

Compound	Moles		Weight, g
HeO₂Ne₁H₃BeN₃AuAg₃Li₂Ca₄C₃Cu₂Zn₆Fe₃Lr₅

Elemental composition of HeO₂Ne₁H₃BeN₃AuAg₃Li₂Ca₄C₃Cu₂Zn₆Fe₃Lr₅

Element	Symbol	Atomic weight	Atoms	Mass percent
Helium	He	4.002602	1	0.1410
Oxygen	O	15.9994	2	1.1273
Neon	Ne	20.1797	1	0.7109
Hydrogen	H	1.00794	3	0.1065
Beryllium	Be	9.012182	1	0.3175
Nitrogen	N	14.0067	3	1.4804
Gold	Au	196.966569	1	6.9391
Silver	Ag	107.8682	3	11.4006
Lithium	Li	6.941	2	0.4891
Calcium	Ca	40.078	4	5.6478
Carbon	C	12.0107	3	1.2694
Copper	Cu	63.546	2	4.4775
Zinc	Zn	65.38	6	13.8200
Iron	Fe	55.845	3	5.9023
Lawrencium	Lr	262.1096	5	46.1706

Computing molar mass step by step
First, compute the number of each atom in HeO₂Ne₁H₃BeN₃AuAg₃Li₂Ca₄C₃Cu₂Zn₆Fe₃Lr₅: He: 1, O: 2, Ne: 1, H: 3, Be: 1, N: 3, Au: 1, Ag: 3, Li: 2, Ca: 4, C: 3, Cu: 2, Zn: 6, Fe: 3, Lr: 5 Then, lookup atomic weights for each element in periodic table: He: 4.002602, O: 15.9994, Ne: 20.1797, H: 1.00794, Be: 9.012182, N: 14.0067, Au: 196.966569, Ag: 107.8682, Li: 6.941, Ca: 40.078, C: 12.0107, Cu: 63.546, Zn: 65.38, Fe: 55.845, Lr: 262.10963 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (HeO₂Ne₁H₃BeN₃AuAg₃Li₂Ca₄C₃Cu₂Zn₆Fe₃Lr₅) = ∑ Count_i * Weight_i = Count(He) * Weight(He) + Count(O) * Weight(O) + Count(Ne) * Weight(Ne) + Count(H) * Weight(H) + Count(Be) * Weight(Be) + Count(N) * Weight(N) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(Li) * Weight(Li) + Count(Ca) * Weight(Ca) + Count(C) * Weight(C) + Count(Cu) * Weight(Cu) + Count(Zn) * Weight(Zn) + Count(Fe) * Weight(Fe) + Count(Lr) * Weight(Lr) = 1 * 4.002602 + 2 * 15.9994 + 1 * 20.1797 + 3 * 1.00794 + 1 * 9.012182 + 3 * 14.0067 + 1 * 196.966569 + 3 * 107.8682 + 2 * 6.941 + 4 * 40.078 + 3 * 12.0107 + 2 * 63.546 + 6 * 65.38 + 3 * 55.845 + 5 * 262.10963 = 2838.4896 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₃H₃Ag₃AuBeCa₄Cu₂Fe₃HeLi₂Lr₅N₃NeO₂Zn₆

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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