C12H32SI12Cl2O4P12K9H11He12Ge33Xe2CN23B221Br22N11Zn11NB22Ds2 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₁₂H₃₂SI₁₂Cl₂O₄P₁₂K₉H₁₁He₁₂Ge₃₃Xe₂CN₂₃B₂₂₁Br₂₂N₁₁Zn₁₁NB₂₂Ds₂ is 11477.3094 g/mol

Convert between C₁₂H₃₂SI₁₂Cl₂O₄P₁₂K₉H₁₁He₁₂Ge₃₃Xe₂CN₂₃B₂₂₁Br₂₂N₁₁Zn₁₁NB₂₂Ds₂ weight and moles

Compound	Moles		Weight, g
C₁₂H₃₂SI₁₂Cl₂O₄P₁₂K₉H₁₁He₁₂Ge₃₃Xe₂CN₂₃B₂₂₁Br₂₂N₁₁Zn₁₁NB₂₂Ds₂

Elemental composition of C₁₂H₃₂SI₁₂Cl₂O₄P₁₂K₉H₁₁He₁₂Ge₃₃Xe₂CN₂₃B₂₂₁Br₂₂N₁₁Zn₁₁NB₂₂Ds₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	13	1.3604
Hydrogen	H	1.00794	43	0.3776
Sulfur	S	32.065	1	0.2794
Iodine	I	126.90447	12	13.2684
Chlorine	Cl	35.453	2	0.6178
Oxygen	O	15.9994	4	0.5576
Phosphorus	P	30.973762	12	3.2384
Potassium	K	39.0983	9	3.0659
Helium	He	4.002602	12	0.4185
Germanium	Ge	72.64	33	20.8857
Xenon	Xe	131.293	2	2.2879
Nitrogen	N	14.0067	35	4.2713
Boron	B	10.811	243	22.8893
Bromine	Br	79.904	22	15.3162
Zinc	Zn	65.38	11	6.2661
Darmstadtium	Ds	281.1621	2	4.8994

Computing molar mass step by step
First, compute the number of each atom in C₁₂H₃₂SI₁₂Cl₂O₄P₁₂K₉H₁₁He₁₂Ge₃₃Xe₂CN₂₃B₂₂₁Br₂₂N₁₁Zn₁₁NB₂₂Ds₂: C: 13, H: 43, S: 1, I: 12, Cl: 2, O: 4, P: 12, K: 9, He: 12, Ge: 33, Xe: 2, N: 35, B: 243, Br: 22, Zn: 11, Ds: 2 Then, lookup atomic weights for each element in periodic table: C: 12.0107, H: 1.00794, S: 32.065, I: 126.90447, Cl: 35.453, O: 15.9994, P: 30.973762, K: 39.0983, He: 4.002602, Ge: 72.64, Xe: 131.293, N: 14.0067, B: 10.811, Br: 79.904, Zn: 65.38, Ds: 281.16206 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₁₂H₃₂SI₁₂Cl₂O₄P₁₂K₉H₁₁He₁₂Ge₃₃Xe₂CN₂₃B₂₂₁Br₂₂N₁₁Zn₁₁NB₂₂Ds₂) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(H) * Weight(H) + Count(S) * Weight(S) + Count(I) * Weight(I) + Count(Cl) * Weight(Cl) + Count(O) * Weight(O) + Count(P) * Weight(P) + Count(K) * Weight(K) + Count(He) * Weight(He) + Count(Ge) * Weight(Ge) + Count(Xe) * Weight(Xe) + Count(N) * Weight(N) + Count(B) * Weight(B) + Count(Br) * Weight(Br) + Count(Zn) * Weight(Zn) + Count(Ds) * Weight(Ds) = 13 * 12.0107 + 43 * 1.00794 + 1 * 32.065 + 12 * 126.90447 + 2 * 35.453 + 4 * 15.9994 + 12 * 30.973762 + 9 * 39.0983 + 12 * 4.002602 + 33 * 72.64 + 2 * 131.293 + 35 * 14.0067 + 243 * 10.811 + 22 * 79.904 + 11 * 65.38 + 2 * 281.16206 = 11477.3094 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₃H₄₃B₂₄₃Br₂₂Cl₂Ds₂Ge₃₃He₁₂I₁₂K₉N₃₅O₄P₁₂SXe₂Zn₁₁

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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