Cl4S2K3Mg2I5As6Ba9Fe7Ag2Au5Y2O5B3F3WTi2Mo13H12Ir17Cr20Br2Be molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Cl₄S₂K₃Mg₂I₅As₆Ba₉Fe₇Ag₂Au₅Y₂O₅B₃F₃WTi₂Mo₁₃H₁₂Ir₁₇Cr₂₀Br₂Be is 10646.1435 g/mol

Convert between Cl₄S₂K₃Mg₂I₅As₆Ba₉Fe₇Ag₂Au₅Y₂O₅B₃F₃WTi₂Mo₁₃H₁₂Ir₁₇Cr₂₀Br₂Be weight and moles

Compound	Moles		Weight, g
Cl₄S₂K₃Mg₂I₅As₆Ba₉Fe₇Ag₂Au₅Y₂O₅B₃F₃WTi₂Mo₁₃H₁₂Ir₁₇Cr₂₀Br₂Be

Elemental composition of Cl₄S₂K₃Mg₂I₅As₆Ba₉Fe₇Ag₂Au₅Y₂O₅B₃F₃WTi₂Mo₁₃H₁₂Ir₁₇Cr₂₀Br₂Be

Element	Symbol	Atomic weight	Atoms	Mass percent
Chlorine	Cl	35.453	4	1.3321
Sulfur	S	32.065	2	0.6024
Potassium	K	39.0983	3	1.1018
Magnesium	Mg	24.3050	2	0.4566
Iodine	I	126.90447	5	5.9601
Arsenic	As	74.92160	6	4.2225
Barium	Ba	137.327	9	11.6093
Iron	Fe	55.845	7	3.6719
Silver	Ag	107.8682	2	2.0264
Gold	Au	196.966569	5	9.2506
Yttrium	Y	88.90585	2	1.6702
Oxygen	O	15.9994	5	0.7514
Boron	B	10.811	3	0.3046
Fluorine	F	18.9984032	3	0.5354
Tungsten	W	183.84	1	1.7268
Titanium	Ti	47.867	2	0.8992
Molybdenum	Mo	95.96	13	11.7177
Hydrogen	H	1.00794	12	0.1136
Iridium	Ir	192.217	17	30.6936
Chromium	Cr	51.9961	20	9.7681
Bromine	Br	79.904	2	1.5011
Beryllium	Be	9.012182	1	0.0847

Computing molar mass step by step
First, compute the number of each atom in Cl₄S₂K₃Mg₂I₅As₆Ba₉Fe₇Ag₂Au₅Y₂O₅B₃F₃WTi₂Mo₁₃H₁₂Ir₁₇Cr₂₀Br₂Be: Cl: 4, S: 2, K: 3, Mg: 2, I: 5, As: 6, Ba: 9, Fe: 7, Ag: 2, Au: 5, Y: 2, O: 5, B: 3, F: 3, W: 1, Ti: 2, Mo: 13, H: 12, Ir: 17, Cr: 20, Br: 2, Be: 1 Then, lookup atomic weights for each element in periodic table: Cl: 35.453, S: 32.065, K: 39.0983, Mg: 24.305, I: 126.90447, As: 74.9216, Ba: 137.327, Fe: 55.845, Ag: 107.8682, Au: 196.966569, Y: 88.90585, O: 15.9994, B: 10.811, F: 18.9984032, W: 183.84, Ti: 47.867, Mo: 95.96, H: 1.00794, Ir: 192.217, Cr: 51.9961, Br: 79.904, Be: 9.012182 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Cl₄S₂K₃Mg₂I₅As₆Ba₉Fe₇Ag₂Au₅Y₂O₅B₃F₃WTi₂Mo₁₃H₁₂Ir₁₇Cr₂₀Br₂Be) = ∑ Count_i * Weight_i = Count(Cl) * Weight(Cl) + Count(S) * Weight(S) + Count(K) * Weight(K) + Count(Mg) * Weight(Mg) + Count(I) * Weight(I) + Count(As) * Weight(As) + Count(Ba) * Weight(Ba) + Count(Fe) * Weight(Fe) + Count(Ag) * Weight(Ag) + Count(Au) * Weight(Au) + Count(Y) * Weight(Y) + Count(O) * Weight(O) + Count(B) * Weight(B) + Count(F) * Weight(F) + Count(W) * Weight(W) + Count(Ti) * Weight(Ti) + Count(Mo) * Weight(Mo) + Count(H) * Weight(H) + Count(Ir) * Weight(Ir) + Count(Cr) * Weight(Cr) + Count(Br) * Weight(Br) + Count(Be) * Weight(Be) = 4 * 35.453 + 2 * 32.065 + 3 * 39.0983 + 2 * 24.305 + 5 * 126.90447 + 6 * 74.9216 + 9 * 137.327 + 7 * 55.845 + 2 * 107.8682 + 5 * 196.966569 + 2 * 88.90585 + 5 * 15.9994 + 3 * 10.811 + 3 * 18.9984032 + 1 * 183.84 + 2 * 47.867 + 13 * 95.96 + 12 * 1.00794 + 17 * 192.217 + 20 * 51.9961 + 2 * 79.904 + 1 * 9.012182 = 10646.1435 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ag₂As₆Au₅B₃Ba₉BeBr₂Cl₄Cr₂₀F₃Fe₇H₁₂I₅Ir₁₇K₃Mg₂Mo₁₃O₅S₂Ti₂WY₂

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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