AgBrPb2Sb3N2O2C4K2U4Br2B5H2He3Ne2Xe2Ni4Zn5 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of AgBrPb₂Sb₃N₂O₂C₄K₂U₄Br₂B₅H₂He₃Ne₂Xe₂Ni₄Zn₅ is 3198.3251 g/mol

Convert between AgBrPb₂Sb₃N₂O₂C₄K₂U₄Br₂B₅H₂He₃Ne₂Xe₂Ni₄Zn₅ weight and moles

Compound	Moles		Weight, g
AgBrPb₂Sb₃N₂O₂C₄K₂U₄Br₂B₅H₂He₃Ne₂Xe₂Ni₄Zn₅

Elemental composition of AgBrPb₂Sb₃N₂O₂C₄K₂U₄Br₂B₅H₂He₃Ne₂Xe₂Ni₄Zn₅

Element	Symbol	Atomic weight	Atoms	Mass percent
Silver	Ag	107.8682	1	3.3726
Bromine	Br	79.904	3	7.4949
Lead	Pb	207.2	2	12.9568
Antimony	Sb	121.760	3	11.4210
Nitrogen	N	14.0067	2	0.8759
Oxygen	O	15.9994	2	1.0005
Carbon	C	12.0107	4	1.5021
Potassium	K	39.0983	2	2.4449
Uranium	U	238.02891	4	29.7692
Boron	B	10.811	5	1.6901
Hydrogen	H	1.00794	2	0.0630
Helium	He	4.002602	3	0.3754
Neon	Ne	20.1797	2	1.2619
Xenon	Xe	131.293	2	8.2101
Nickel	Ni	58.6934	4	7.3405
Zinc	Zn	65.38	5	10.2210

Computing molar mass step by step
First, compute the number of each atom in AgBrPb₂Sb₃N₂O₂C₄K₂U₄Br₂B₅H₂He₃Ne₂Xe₂Ni₄Zn₅: Ag: 1, Br: 3, Pb: 2, Sb: 3, N: 2, O: 2, C: 4, K: 2, U: 4, B: 5, H: 2, He: 3, Ne: 2, Xe: 2, Ni: 4, Zn: 5 Then, lookup atomic weights for each element in periodic table: Ag: 107.8682, Br: 79.904, Pb: 207.2, Sb: 121.76, N: 14.0067, O: 15.9994, C: 12.0107, K: 39.0983, U: 238.02891, B: 10.811, H: 1.00794, He: 4.002602, Ne: 20.1797, Xe: 131.293, Ni: 58.6934, Zn: 65.38 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (AgBrPb₂Sb₃N₂O₂C₄K₂U₄Br₂B₅H₂He₃Ne₂Xe₂Ni₄Zn₅) = ∑ Count_i * Weight_i = Count(Ag) * Weight(Ag) + Count(Br) * Weight(Br) + Count(Pb) * Weight(Pb) + Count(Sb) * Weight(Sb) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(C) * Weight(C) + Count(K) * Weight(K) + Count(U) * Weight(U) + Count(B) * Weight(B) + Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Ne) * Weight(Ne) + Count(Xe) * Weight(Xe) + Count(Ni) * Weight(Ni) + Count(Zn) * Weight(Zn) = 1 * 107.8682 + 3 * 79.904 + 2 * 207.2 + 3 * 121.76 + 2 * 14.0067 + 2 * 15.9994 + 4 * 12.0107 + 2 * 39.0983 + 4 * 238.02891 + 5 * 10.811 + 2 * 1.00794 + 3 * 4.002602 + 2 * 20.1797 + 2 * 131.293 + 4 * 58.6934 + 5 * 65.38 = 3198.3251 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₄H₂AgB₅Br₃He₃K₂N₂Ne₂Ni₄O₂Pb₂Sb₃U₄Xe₂Zn₅

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, 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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