H3O2Zn4Fe2Cl3Ar3SI2Mg2S2O3K3Ca2P4Br3Mt1Ba2 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₃O₂Zn₄Fe₂Cl₃Ar₃SI₂Mg₂S₂O₃K₃Ca₂P₄Br₃Mt₁Ba₂ is 2192.9109 g/mol

Convert between H₃O₂Zn₄Fe₂Cl₃Ar₃SI₂Mg₂S₂O₃K₃Ca₂P₄Br₃Mt₁Ba₂ weight and moles

Compound	Moles		Weight, g
H₃O₂Zn₄Fe₂Cl₃Ar₃SI₂Mg₂S₂O₃K₃Ca₂P₄Br₃Mt₁Ba₂

Elemental composition of H₃O₂Zn₄Fe₂Cl₃Ar₃SI₂Mg₂S₂O₃K₃Ca₂P₄Br₃Mt₁Ba₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	3	0.1379
Oxygen	O	15.9994	5	3.6480
Zinc	Zn	65.38	4	11.9257
Iron	Fe	55.845	2	5.0932
Chlorine	Cl	35.453	3	4.8501
Argon	Ar	39.948	3	5.4651
Sulfur	S	32.065	3	4.3866
Iodine	I	126.90447	2	11.5741
Magnesium	Mg	24.3050	2	2.2167
Potassium	K	39.0983	3	5.3488
Calcium	Ca	40.078	2	3.6552
Phosphorus	P	30.973762	4	5.6498
Bromine	Br	79.904	3	10.9312
Meitnerium	Mt	276.1512	1	12.5929
Barium	Ba	137.327	2	12.5246

Computing molar mass step by step
First, compute the number of each atom in H₃O₂Zn₄Fe₂Cl₃Ar₃SI₂Mg₂S₂O₃K₃Ca₂P₄Br₃Mt₁Ba₂: H: 3, O: 5, Zn: 4, Fe: 2, Cl: 3, Ar: 3, S: 3, I: 2, Mg: 2, K: 3, Ca: 2, P: 4, Br: 3, Mt: 1, Ba: 2 Then, lookup atomic weights for each element in periodic table: H: 1.00794, O: 15.9994, Zn: 65.38, Fe: 55.845, Cl: 35.453, Ar: 39.948, S: 32.065, I: 126.90447, Mg: 24.305, K: 39.0983, Ca: 40.078, P: 30.973762, Br: 79.904, Mt: 276.15116, Ba: 137.327 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₃O₂Zn₄Fe₂Cl₃Ar₃SI₂Mg₂S₂O₃K₃Ca₂P₄Br₃Mt₁Ba₂) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Zn) * Weight(Zn) + Count(Fe) * Weight(Fe) + Count(Cl) * Weight(Cl) + Count(Ar) * Weight(Ar) + Count(S) * Weight(S) + Count(I) * Weight(I) + Count(Mg) * Weight(Mg) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(P) * Weight(P) + Count(Br) * Weight(Br) + Count(Mt) * Weight(Mt) + Count(Ba) * Weight(Ba) = 3 * 1.00794 + 5 * 15.9994 + 4 * 65.38 + 2 * 55.845 + 3 * 35.453 + 3 * 39.948 + 3 * 32.065 + 2 * 126.90447 + 2 * 24.305 + 3 * 39.0983 + 2 * 40.078 + 4 * 30.973762 + 3 * 79.904 + 1 * 276.15116 + 2 * 137.327 = 2192.9109 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ar₃Ba₂Br₃Ca₂Cl₃Fe₂H₃I₂K₃Mg₂MtO₅P₄S₃Zn₄

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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