S1Cl2F3He5O3Xe2Rn5PU3U1Eu2Hg3Au4Ag6Pt2Pd7Ca11Ba5Br3Se7H33 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of S₁Cl₂F₃He₅O₃Xe₂Rn₅PU₃U₁Eu₂Hg₃Au₄Ag₆Pt₂Pd₇Ca₁₁Ba₅Br₃Se₇H₃₃ is 7957.6743 g/mol

Convert between S₁Cl₂F₃He₅O₃Xe₂Rn₅PU₃U₁Eu₂Hg₃Au₄Ag₆Pt₂Pd₇Ca₁₁Ba₅Br₃Se₇H₃₃ weight and moles

Compound	Moles		Weight, g
S₁Cl₂F₃He₅O₃Xe₂Rn₅PU₃U₁Eu₂Hg₃Au₄Ag₆Pt₂Pd₇Ca₁₁Ba₅Br₃Se₇H₃₃

Elemental composition of S₁Cl₂F₃He₅O₃Xe₂Rn₅PU₃U₁Eu₂Hg₃Au₄Ag₆Pt₂Pd₇Ca₁₁Ba₅Br₃Se₇H₃₃

Element	Symbol	Atomic weight	Atoms	Mass percent
Sulfur	S	32.065	1	0.4029
Chlorine	Cl	35.453	2	0.8910
Fluorine	F	18.9984032	3	0.7162
Helium	He	4.002602	5	0.2515
Oxygen	O	15.9994	3	0.6032
Xenon	Xe	131.293	2	3.2998
Radon	Rn	210.990601	5	13.2571
Phosphorus	P	30.973762	1	0.3892
Uranium	U	238.02891	4	11.9647
Europium	Eu	151.964	2	3.8193
Mercury	Hg	200.59	3	7.5621
Gold	Au	196.966569	4	9.9007
Silver	Ag	107.8682	6	8.1331
Platinum	Pt	195.084	2	4.9030
Palladium	Pd	106.42	7	9.3613
Calcium	Ca	40.078	11	5.5400
Barium	Ba	137.327	5	8.6286
Bromine	Br	79.904	3	3.0123
Selenium	Se	78.96	7	6.9457
Hydrogen	H	1.00794	33	0.4180

Computing molar mass step by step
First, compute the number of each atom in S₁Cl₂F₃He₅O₃Xe₂Rn₅PU₃U₁Eu₂Hg₃Au₄Ag₆Pt₂Pd₇Ca₁₁Ba₅Br₃Se₇H₃₃: S: 1, Cl: 2, F: 3, He: 5, O: 3, Xe: 2, Rn: 5, P: 1, U: 4, Eu: 2, Hg: 3, Au: 4, Ag: 6, Pt: 2, Pd: 7, Ca: 11, Ba: 5, Br: 3, Se: 7, H: 33 Then, lookup atomic weights for each element in periodic table: S: 32.065, Cl: 35.453, F: 18.9984032, He: 4.002602, O: 15.9994, Xe: 131.293, Rn: 210.990601, P: 30.973762, U: 238.02891, Eu: 151.964, Hg: 200.59, Au: 196.966569, Ag: 107.8682, Pt: 195.084, Pd: 106.42, Ca: 40.078, Ba: 137.327, Br: 79.904, Se: 78.96, H: 1.00794 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (S₁Cl₂F₃He₅O₃Xe₂Rn₅PU₃U₁Eu₂Hg₃Au₄Ag₆Pt₂Pd₇Ca₁₁Ba₅Br₃Se₇H₃₃) = ∑ Count_i * Weight_i = Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(F) * Weight(F) + Count(He) * Weight(He) + Count(O) * Weight(O) + Count(Xe) * Weight(Xe) + Count(Rn) * Weight(Rn) + Count(P) * Weight(P) + Count(U) * Weight(U) + Count(Eu) * Weight(Eu) + Count(Hg) * Weight(Hg) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(Pt) * Weight(Pt) + Count(Pd) * Weight(Pd) + Count(Ca) * Weight(Ca) + Count(Ba) * Weight(Ba) + Count(Br) * Weight(Br) + Count(Se) * Weight(Se) + Count(H) * Weight(H) = 1 * 32.065 + 2 * 35.453 + 3 * 18.9984032 + 5 * 4.002602 + 3 * 15.9994 + 2 * 131.293 + 5 * 210.990601 + 1 * 30.973762 + 4 * 238.02891 + 2 * 151.964 + 3 * 200.59 + 4 * 196.966569 + 6 * 107.8682 + 2 * 195.084 + 7 * 106.42 + 11 * 40.078 + 5 * 137.327 + 3 * 79.904 + 7 * 78.96 + 33 * 1.00794 = 7957.6743 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ag₆Au₄Ba₅Br₃Ca₁₁Cl₂Eu₂F₃H₃₃He₅Hg₃O₃PPd₇Pt₂Rn₅SSe₇U₄Xe₂

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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