Na2O3S4H14N5Ba875W2C14Tl3Xe94Cs6Hg4K77 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Na₂O₃S₄H₁₄N₅Ba₈₇₅W₂C₁₄Tl₃Xe₉₄Cs₆Hg₄K₇₇ is 138568.3909 g/mol

Convert between Na₂O₃S₄H₁₄N₅Ba₈₇₅W₂C₁₄Tl₃Xe₉₄Cs₆Hg₄K₇₇ weight and moles

Compound	Moles		Weight, g
Na₂O₃S₄H₁₄N₅Ba₈₇₅W₂C₁₄Tl₃Xe₉₄Cs₆Hg₄K₇₇

Elemental composition of Na₂O₃S₄H₁₄N₅Ba₈₇₅W₂C₁₄Tl₃Xe₉₄Cs₆Hg₄K₇₇

Element	Symbol	Atomic weight	Atoms	Mass percent
Sodium	Na	22.98976928	2	0.0332
Oxygen	O	15.9994	3	0.0346
Sulfur	S	32.065	4	0.0926
Hydrogen	H	1.00794	14	0.0102
Nitrogen	N	14.0067	5	0.0505
Barium	Ba	137.327	875	86.7161
Tungsten	W	183.84	2	0.2653
Carbon	C	12.0107	14	0.1213
Thallium	Tl	204.3833	3	0.4425
Xenon	Xe	131.293	94	8.9065
Cesium	Cs	132.9054519	6	0.5755
Mercury	Hg	200.59	4	0.5790
Potassium	K	39.0983	77	2.1726

Computing molar mass step by step
First, compute the number of each atom in Na₂O₃S₄H₁₄N₅Ba₈₇₅W₂C₁₄Tl₃Xe₉₄Cs₆Hg₄K₇₇: Na: 2, O: 3, S: 4, H: 14, N: 5, Ba: 875, W: 2, C: 14, Tl: 3, Xe: 94, Cs: 6, Hg: 4, K: 77 Then, lookup atomic weights for each element in periodic table: Na: 22.98976928, O: 15.9994, S: 32.065, H: 1.00794, N: 14.0067, Ba: 137.327, W: 183.84, C: 12.0107, Tl: 204.3833, Xe: 131.293, Cs: 132.9054519, Hg: 200.59, K: 39.0983 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Na₂O₃S₄H₁₄N₅Ba₈₇₅W₂C₁₄Tl₃Xe₉₄Cs₆Hg₄K₇₇) = ∑ Count_i * Weight_i = Count(Na) * Weight(Na) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(H) * Weight(H) + Count(N) * Weight(N) + Count(Ba) * Weight(Ba) + Count(W) * Weight(W) + Count(C) * Weight(C) + Count(Tl) * Weight(Tl) + Count(Xe) * Weight(Xe) + Count(Cs) * Weight(Cs) + Count(Hg) * Weight(Hg) + Count(K) * Weight(K) = 2 * 22.98976928 + 3 * 15.9994 + 4 * 32.065 + 14 * 1.00794 + 5 * 14.0067 + 875 * 137.327 + 2 * 183.84 + 14 * 12.0107 + 3 * 204.3833 + 94 * 131.293 + 6 * 132.9054519 + 4 * 200.59 + 77 * 39.0983 = 138568.3909 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₄H₁₄Ba₈₇₅Cs₆Hg₄K₇₇N₅Na₂O₃S₄Tl₃W₂Xe₉₄

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

Please let us know how we can improve this web app.

How to cite?

Choose languageDeutschEnglishEspañol Français Italiano Nederlands Polski Português Русский 中文日本語 한국어