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Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of CHIPSYWONBFKVMgBiAuCuCfFeHeZnFeCoNiPoAtYbLuXeNeThKrBaRaLaCeD is 3545.8222 g/mol

Convert between CHIPSYWONBFKVMgBiAuCuCfFeHeZnFeCoNiPoAtYbLuXeNeThKrBaRaLaCeD weight and moles
CompoundMolesWeight, g
CHIPSYWONBFKVMgBiAuCuCfFeHeZnFeCoNiPoAtYbLuXeNeThKrBaRaLaCeD

Elemental composition of CHIPSYWONBFKVMgBiAuCuCfFeHeZnFeCoNiPoAtYbLuXeNeThKrBaRaLaCeD
ElementSymbolAtomic weightAtomsMass percent
CarbonC12.010710.3387
HydrogenH1.0079410.0284
IodineI126.9044713.5790
PhosphorusP30.97376210.8735
SulfurS32.06510.9043
YttriumY88.9058512.5073
TungstenW183.8415.1847
OxygenO15.999410.4512
NitrogenN14.006710.3950
BoronB10.81110.3049
FluorineF18.998403210.5358
PotassiumK39.098311.1027
VanadiumV50.941511.4367
MagnesiumMg24.305010.6855
BismuthBi208.9804015.8937
GoldAu196.96656915.5549
CopperCu63.54611.7921
CaliforniumCf249.07485317.0245
IronFe55.84523.1499
HeliumHe4.00260210.1129
ZincZn65.3811.8439
CobaltCo58.93319511.6620
NickelNi58.693411.6553
PoloniumPo208.98243015.8938
AstatineAt209.98714815.9221
YtterbiumYb173.05414.8805
LutetiumLu174.966814.9344
XenonXe131.29313.7028
NeonNe20.179710.5691
ThoriumTh232.0380616.5440
KryptonKr83.79812.3633
BariumBa137.32713.8729
RadiumRa226.02541016.3744
LanthanumLa138.9054713.9174
CeriumCe140.11613.9516
HydrogenD2.014101777810.0568

Computing molar mass step by step

First, compute the number of each atom in CHIPSYWONBFKVMgBiAuCuCfFeHeZnFeCoNiPoAtYbLuXeNeThKrBaRaLaCeD:
C: 1, H: 1, I: 1, P: 1, S: 1, Y: 1, W: 1, O: 1, N: 1, B: 1, F: 1, K: 1, V: 1, Mg: 1, Bi: 1, Au: 1, Cu: 1, Cf: 1, Fe: 2, He: 1, Zn: 1, Co: 1, Ni: 1, Po: 1, At: 1, Yb: 1, Lu: 1, Xe: 1, Ne: 1, Th: 1, Kr: 1, Ba: 1, Ra: 1, La: 1, Ce: 1, D: 1

Then, lookup atomic weights for each element in periodic table:
C: 12.0107, H: 1.00794, I: 126.90447, P: 30.973762, S: 32.065, Y: 88.90585, W: 183.84, O: 15.9994, N: 14.0067, B: 10.811, F: 18.9984032, K: 39.0983, V: 50.9415, Mg: 24.305, Bi: 208.9804, Au: 196.966569, Cu: 63.546, Cf: 249.0748535, Fe: 55.845, He: 4.002602, Zn: 65.38, Co: 58.933195, Ni: 58.6934, Po: 208.9824304, At: 209.987148, Yb: 173.054, Lu: 174.9668, Xe: 131.293, Ne: 20.1797, Th: 232.03806, Kr: 83.798, Ba: 137.327, Ra: 226.0254098, La: 138.90547, Ce: 140.116, D: 2.0141017778

Now, compute the sum of products of number of atoms to the atomic weight:
Molar mass (CHIPSYWONBFKVMgBiAuCuCfFeHeZnFeCoNiPoAtYbLuXeNeThKrBaRaLaCeD) = ∑ Counti * Weighti =
Count(C) * Weight(C) + Count(H) * Weight(H) + Count(I) * Weight(I) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(Y) * Weight(Y) + Count(W) * Weight(W) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(B) * Weight(B) + Count(F) * Weight(F) + Count(K) * Weight(K) + Count(V) * Weight(V) + Count(Mg) * Weight(Mg) + Count(Bi) * Weight(Bi) + Count(Au) * Weight(Au) + Count(Cu) * Weight(Cu) + Count(Cf) * Weight(Cf) + Count(Fe) * Weight(Fe) + Count(He) * Weight(He) + Count(Zn) * Weight(Zn) + Count(Co) * Weight(Co) + Count(Ni) * Weight(Ni) + Count(Po) * Weight(Po) + Count(At) * Weight(At) + Count(Yb) * Weight(Yb) + Count(Lu) * Weight(Lu) + Count(Xe) * Weight(Xe) + Count(Ne) * Weight(Ne) + Count(Th) * Weight(Th) + Count(Kr) * Weight(Kr) + Count(Ba) * Weight(Ba) + Count(Ra) * Weight(Ra) + Count(La) * Weight(La) + Count(Ce) * Weight(Ce) + Count(D) * Weight(D) =
1 * 12.0107 + 1 * 1.00794 + 1 * 126.90447 + 1 * 30.973762 + 1 * 32.065 + 1 * 88.90585 + 1 * 183.84 + 1 * 15.9994 + 1 * 14.0067 + 1 * 10.811 + 1 * 18.9984032 + 1 * 39.0983 + 1 * 50.9415 + 1 * 24.305 + 1 * 208.9804 + 1 * 196.966569 + 1 * 63.546 + 1 * 249.0748535 + 2 * 55.845 + 1 * 4.002602 + 1 * 65.38 + 1 * 58.933195 + 1 * 58.6934 + 1 * 208.9824304 + 1 * 209.987148 + 1 * 173.054 + 1 * 174.9668 + 1 * 131.293 + 1 * 20.1797 + 1 * 232.03806 + 1 * 83.798 + 1 * 137.327 + 1 * 226.0254098 + 1 * 138.90547 + 1 * 140.116 + 1 * 2.0141017778 =
3545.8222 g/mol


Mass percent compositionAtomic percent composition

Formula in Hill system is CHAtAuBBaBiCeCfCoCuFFe2DHeIKKrLaLuMgNNeNiOPPoRaSThVWXeYYbZn

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

  1. 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.
  2. 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).
  3. Calculate molar mass of each element: multiply the atomic mass of each element by the number of atoms of that element in the compound.
  4. 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.

Related: Molecular weights of amino acids

molecular weights calculated today
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