H2510He7Li9Be1B10C772N17O294F6Ne1Na14Ca5U2 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₂₅₁₀He₇Li₉Be₁B₁₀C₇₇₂N₁₇O₂₉₄F₆Ne₁Na₁₄Ca₅U₂ is 18084.2114 g/mol

Convert between H₂₅₁₀He₇Li₉Be₁B₁₀C₇₇₂N₁₇O₂₉₄F₆Ne₁Na₁₄Ca₅U₂ weight and moles

Compound	Moles		Weight, g
H₂₅₁₀He₇Li₉Be₁B₁₀C₇₇₂N₁₇O₂₉₄F₆Ne₁Na₁₄Ca₅U₂

Elemental composition of H₂₅₁₀He₇Li₉Be₁B₁₀C₇₇₂N₁₇O₂₉₄F₆Ne₁Na₁₄Ca₅U₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	2510	13.9897
Helium	He	4.002602	7	0.1549
Lithium	Li	6.941	9	0.3454
Beryllium	Be	9.012182	1	0.0498
Boron	B	10.811	10	0.5978
Carbon	C	12.0107	772	51.2727
Nitrogen	N	14.0067	17	1.3167
Oxygen	O	15.9994	294	26.0107
Fluorine	F	18.9984032	6	0.6303
Neon	Ne	20.1797	1	0.1116
Sodium	Na	22.98976928	14	1.7798
Calcium	Ca	40.078	5	1.1081
Uranium	U	238.02891	2	2.6324

Computing molar mass step by step
First, compute the number of each atom in H₂₅₁₀He₇Li₉Be₁B₁₀C₇₇₂N₁₇O₂₉₄F₆Ne₁Na₁₄Ca₅U₂: H: 2510, He: 7, Li: 9, Be: 1, B: 10, C: 772, N: 17, O: 294, F: 6, Ne: 1, Na: 14, Ca: 5, U: 2 Then, lookup atomic weights for each element in periodic table: H: 1.00794, He: 4.002602, Li: 6.941, Be: 9.012182, B: 10.811, C: 12.0107, N: 14.0067, O: 15.9994, F: 18.9984032, Ne: 20.1797, Na: 22.98976928, Ca: 40.078, U: 238.02891 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₂₅₁₀He₇Li₉Be₁B₁₀C₇₇₂N₁₇O₂₉₄F₆Ne₁Na₁₄Ca₅U₂) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(B) * Weight(B) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(F) * Weight(F) + Count(Ne) * Weight(Ne) + Count(Na) * Weight(Na) + Count(Ca) * Weight(Ca) + Count(U) * Weight(U) = 2510 * 1.00794 + 7 * 4.002602 + 9 * 6.941 + 1 * 9.012182 + 10 * 10.811 + 772 * 12.0107 + 17 * 14.0067 + 294 * 15.9994 + 6 * 18.9984032 + 1 * 20.1797 + 14 * 22.98976928 + 5 * 40.078 + 2 * 238.02891 = 18084.2114 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₇₇₂H₂₅₁₀B₁₀BeCa₅F₆He₇Li₉N₁₇Na₁₄NeO₂₉₄U₂

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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