W4H16S45Cl45Xe43Lr30Eu76F44O45Cf56H1000 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of W₄H₁₆S₄₅Cl₄₅Xe₄₃Lr₃₀Eu₇₆F₄₄O₄₅Cf₅₆H₁₀₀₀ is 45359.9835 g/mol

Convert between W₄H₁₆S₄₅Cl₄₅Xe₄₃Lr₃₀Eu₇₆F₄₄O₄₅Cf₅₆H₁₀₀₀ weight and moles

Compound	Moles		Weight, g
W₄H₁₆S₄₅Cl₄₅Xe₄₃Lr₃₀Eu₇₆F₄₄O₄₅Cf₅₆H₁₀₀₀

Elemental composition of W₄H₁₆S₄₅Cl₄₅Xe₄₃Lr₃₀Eu₇₆F₄₄O₄₅Cf₅₆H₁₀₀₀

Element	Symbol	Atomic weight	Atoms	Mass percent
Tungsten	W	183.84	4	1.6212
Hydrogen	H	1.00794	1016	2.2576
Sulfur	S	32.065	45	3.1811
Chlorine	Cl	35.453	45	3.5172
Xenon	Xe	131.293	43	12.4462
Lawrencium	Lr	262.1096	30	17.3353
Europium	Eu	151.964	76	25.4613
Fluorine	F	18.9984032	44	1.8429
Oxygen	O	15.9994	45	1.5872
Californium	Cf	249.074853	56	30.7500

Computing molar mass step by step
First, compute the number of each atom in W₄H₁₆S₄₅Cl₄₅Xe₄₃Lr₃₀Eu₇₆F₄₄O₄₅Cf₅₆H₁₀₀₀: W: 4, H: 1016, S: 45, Cl: 45, Xe: 43, Lr: 30, Eu: 76, F: 44, O: 45, Cf: 56 Then, lookup atomic weights for each element in periodic table: W: 183.84, H: 1.00794, S: 32.065, Cl: 35.453, Xe: 131.293, Lr: 262.10963, Eu: 151.964, F: 18.9984032, O: 15.9994, Cf: 249.0748535 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (W₄H₁₆S₄₅Cl₄₅Xe₄₃Lr₃₀Eu₇₆F₄₄O₄₅Cf₅₆H₁₀₀₀) = ∑ Count_i * Weight_i = Count(W) * Weight(W) + Count(H) * Weight(H) + Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(Xe) * Weight(Xe) + Count(Lr) * Weight(Lr) + Count(Eu) * Weight(Eu) + Count(F) * Weight(F) + Count(O) * Weight(O) + Count(Cf) * Weight(Cf) = 4 * 183.84 + 1016 * 1.00794 + 45 * 32.065 + 45 * 35.453 + 43 * 131.293 + 30 * 262.10963 + 76 * 151.964 + 44 * 18.9984032 + 45 * 15.9994 + 56 * 249.0748535 = 45359.9835 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Cf₅₆Cl₄₅Eu₇₆F₄₄H₁₀₁₆Lr₃₀O₄₅S₄₅W₄Xe₄₃

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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