H11Li10K2N9O4S7Sr2Be4He6Al9P9Kr9Na6Mg5 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₁₁Li₁₀K₂N₉O₄S₇Sr₂Be₄He₆Al₉P₉Kr₉Na₆Mg₅ is 2343.7545 g/mol

Convert between H₁₁Li₁₀K₂N₉O₄S₇Sr₂Be₄He₆Al₉P₉Kr₉Na₆Mg₅ weight and moles

Compound	Moles		Weight, g
H₁₁Li₁₀K₂N₉O₄S₇Sr₂Be₄He₆Al₉P₉Kr₉Na₆Mg₅

Elemental composition of H₁₁Li₁₀K₂N₉O₄S₇Sr₂Be₄He₆Al₉P₉Kr₉Na₆Mg₅

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	11	0.4731
Lithium	Li	6.941	10	2.9615
Potassium	K	39.0983	2	3.3364
Nitrogen	N	14.0067	9	5.3786
Oxygen	O	15.9994	4	2.7306
Sulfur	S	32.065	7	9.5767
Strontium	Sr	87.62	2	7.4769
Beryllium	Be	9.012182	4	1.5381
Helium	He	4.002602	6	1.0247
Aluminum	Al	26.9815386	9	10.3609
Phosphorus	P	30.973762	9	11.8939
Krypton	Kr	83.798	9	32.1784
Sodium	Na	22.98976928	6	5.8854
Magnesium	Mg	24.3050	5	5.1851

Computing molar mass step by step
First, compute the number of each atom in H₁₁Li₁₀K₂N₉O₄S₇Sr₂Be₄He₆Al₉P₉Kr₉Na₆Mg₅: H: 11, Li: 10, K: 2, N: 9, O: 4, S: 7, Sr: 2, Be: 4, He: 6, Al: 9, P: 9, Kr: 9, Na: 6, Mg: 5 Then, lookup atomic weights for each element in periodic table: H: 1.00794, Li: 6.941, K: 39.0983, N: 14.0067, O: 15.9994, S: 32.065, Sr: 87.62, Be: 9.012182, He: 4.002602, Al: 26.9815386, P: 30.973762, Kr: 83.798, Na: 22.98976928, Mg: 24.305 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₁₁Li₁₀K₂N₉O₄S₇Sr₂Be₄He₆Al₉P₉Kr₉Na₆Mg₅) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(Li) * Weight(Li) + Count(K) * Weight(K) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(Sr) * Weight(Sr) + Count(Be) * Weight(Be) + Count(He) * Weight(He) + Count(Al) * Weight(Al) + Count(P) * Weight(P) + Count(Kr) * Weight(Kr) + Count(Na) * Weight(Na) + Count(Mg) * Weight(Mg) = 11 * 1.00794 + 10 * 6.941 + 2 * 39.0983 + 9 * 14.0067 + 4 * 15.9994 + 7 * 32.065 + 2 * 87.62 + 4 * 9.012182 + 6 * 4.002602 + 9 * 26.9815386 + 9 * 30.973762 + 9 * 83.798 + 6 * 22.98976928 + 5 * 24.305 = 2343.7545 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Al₉Be₄H₁₁He₆K₂Kr₉Li₁₀Mg₅N₉Na₆O₄P₉S₇Sr₂

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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