S99Mn99Mg99Ag99Au99Al99W99Ta99Hg99Os99V99 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of S₉₉Mn₉₉Mg₉₉Ag₉₉Au₉₉Al₉₉W₉₉Ta₉₉Hg₉₉Os₉₉V₉₉ is 123717.6995 g/mol

Convert between S₉₉Mn₉₉Mg₉₉Ag₉₉Au₉₉Al₉₉W₉₉Ta₉₉Hg₉₉Os₉₉V₉₉ weight and moles

Compound	Moles		Weight, g
S₉₉Mn₉₉Mg₉₉Ag₉₉Au₉₉Al₉₉W₉₉Ta₉₉Hg₉₉Os₉₉V₉₉

Elemental composition of S₉₉Mn₉₉Mg₉₉Ag₉₉Au₉₉Al₉₉W₉₉Ta₉₉Hg₉₉Os₉₉V₉₉

Element	Symbol	Atomic weight	Atoms	Mass percent
Sulfur	S	32.065	99	2.5659
Manganese	Mn	54.938045	99	4.3962
Magnesium	Mg	24.3050	99	1.9449
Silver	Ag	107.8682	99	8.6317
Gold	Au	196.966569	99	15.7614
Aluminum	Al	26.9815386	99	2.1591
Tungsten	W	183.84	99	14.7110
Tantalum	Ta	180.94788	99	14.4796
Mercury	Hg	200.59	99	16.0514
Osmium	Os	190.23	99	15.2224
Vanadium	V	50.9415	99	4.0764

Computing molar mass step by step
First, compute the number of each atom in S₉₉Mn₉₉Mg₉₉Ag₉₉Au₉₉Al₉₉W₉₉Ta₉₉Hg₉₉Os₉₉V₉₉: S: 99, Mn: 99, Mg: 99, Ag: 99, Au: 99, Al: 99, W: 99, Ta: 99, Hg: 99, Os: 99, V: 99 Then, lookup atomic weights for each element in periodic table: S: 32.065, Mn: 54.938045, Mg: 24.305, Ag: 107.8682, Au: 196.966569, Al: 26.9815386, W: 183.84, Ta: 180.94788, Hg: 200.59, Os: 190.23, V: 50.9415 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (S₉₉Mn₉₉Mg₉₉Ag₉₉Au₉₉Al₉₉W₉₉Ta₉₉Hg₉₉Os₉₉V₉₉) = ∑ Count_i * Weight_i = Count(S) * Weight(S) + Count(Mn) * Weight(Mn) + Count(Mg) * Weight(Mg) + Count(Ag) * Weight(Ag) + Count(Au) * Weight(Au) + Count(Al) * Weight(Al) + Count(W) * Weight(W) + Count(Ta) * Weight(Ta) + Count(Hg) * Weight(Hg) + Count(Os) * Weight(Os) + Count(V) * Weight(V) = 99 * 32.065 + 99 * 54.938045 + 99 * 24.305 + 99 * 107.8682 + 99 * 196.966569 + 99 * 26.9815386 + 99 * 183.84 + 99 * 180.94788 + 99 * 200.59 + 99 * 190.23 + 99 * 50.9415 = 123717.6995 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ag₉₉Al₉₉Au₉₉Hg₉₉Mg₉₉Mn₉₉Os₉₉S₉₉Ta₉₉V₉₉W₉₉

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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