H47O13Ar44U3Am17K2Ag8Be2BO3P98HeLi80Be2BC15N45O5F44Ne11 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₄₇O₁₃Ar₄₄U₃Am₁₇K₂Ag₈Be₂BO₃P₉₈HeLi₈₀Be₂BC₁₅N₄₅O₅F₄₄Ne₁₁ is 13415.0181 g/mol

Convert between H₄₇O₁₃Ar₄₄U₃Am₁₇K₂Ag₈Be₂BO₃P₉₈HeLi₈₀Be₂BC₁₅N₄₅O₅F₄₄Ne₁₁ weight and moles

Compound	Moles		Weight, g
H₄₇O₁₃Ar₄₄U₃Am₁₇K₂Ag₈Be₂BO₃P₉₈HeLi₈₀Be₂BC₁₅N₄₅O₅F₄₄Ne₁₁

Elemental composition of H₄₇O₁₃Ar₄₄U₃Am₁₇K₂Ag₈Be₂BO₃P₉₈HeLi₈₀Be₂BC₁₅N₄₅O₅F₄₄Ne₁₁

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	47	0.3531
Oxygen	O	15.9994	21	2.5046
Argon	Ar	39.948	44	13.1026
Uranium	U	238.02891	3	5.3230
Americium	Am	241.056829	17	30.5476
Potassium	K	39.0983	2	0.5829
Silver	Ag	107.8682	8	6.4327
Beryllium	Be	9.012182	4	0.2687
Boron	B	10.811	2	0.1612
Phosphorus	P	30.973762	98	22.6271
Helium	He	4.002602	1	0.0298
Lithium	Li	6.941	80	4.1392
Carbon	C	12.0107	15	1.3430
Nitrogen	N	14.0067	45	4.6985
Fluorine	F	18.9984032	44	6.2313
Neon	Ne	20.1797	11	1.6547

Computing molar mass step by step
First, compute the number of each atom in H₄₇O₁₃Ar₄₄U₃Am₁₇K₂Ag₈Be₂BO₃P₉₈HeLi₈₀Be₂BC₁₅N₄₅O₅F₄₄Ne₁₁: H: 47, O: 21, Ar: 44, U: 3, Am: 17, K: 2, Ag: 8, Be: 4, B: 2, P: 98, He: 1, Li: 80, C: 15, N: 45, F: 44, Ne: 11 Then, lookup atomic weights for each element in periodic table: H: 1.00794, O: 15.9994, Ar: 39.948, U: 238.02891, Am: 241.0568291, K: 39.0983, Ag: 107.8682, Be: 9.012182, B: 10.811, P: 30.973762, He: 4.002602, Li: 6.941, C: 12.0107, N: 14.0067, F: 18.9984032, Ne: 20.1797 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₄₇O₁₃Ar₄₄U₃Am₁₇K₂Ag₈Be₂BO₃P₉₈HeLi₈₀Be₂BC₁₅N₄₅O₅F₄₄Ne₁₁) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Ar) * Weight(Ar) + Count(U) * Weight(U) + Count(Am) * Weight(Am) + Count(K) * Weight(K) + Count(Ag) * Weight(Ag) + Count(Be) * Weight(Be) + Count(B) * Weight(B) + Count(P) * Weight(P) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(F) * Weight(F) + Count(Ne) * Weight(Ne) = 47 * 1.00794 + 21 * 15.9994 + 44 * 39.948 + 3 * 238.02891 + 17 * 241.0568291 + 2 * 39.0983 + 8 * 107.8682 + 4 * 9.012182 + 2 * 10.811 + 98 * 30.973762 + 1 * 4.002602 + 80 * 6.941 + 15 * 12.0107 + 45 * 14.0067 + 44 * 18.9984032 + 11 * 20.1797 = 13415.0181 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₅H₄₇Ag₈Am₁₇Ar₄₄B₂Be₄F₄₄HeK₂Li₈₀N₄₅Ne₁₁O₂₁P₉₈U₃

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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