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Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of GeAsYZr(HHeBeLiBCNOFNeNaAlAr)2AuAgUAtHf(C6H5)(CH3)(C2H5)Pr(C4H9) is 1984.0316 g/mol

Convert between GeAsYZr(HHeBeLiBCNOFNeNaAlAr)2AuAgUAtHf(C6H5)(CH3)(C2H5)Pr(C4H9) weight and moles
CompoundMolesWeight, g
GeAsYZr(HHeBeLiBCNOFNeNaAlAr)2AuAgUAtHf(C6H5)(CH3)(C2H5)Pr(C4H9)

Elemental composition of GeAsYZr(HHeBeLiBCNOFNeNaAlAr)2AuAgUAtHf(C6H5)(CH3)(C2H5)Pr(C4H9)
ElementSymbolAtomic weightAtomsMass percent
GermaniumGe72.6413.6612
ArsenicAs74.9216013.7762
YttriumY88.9058514.4811
ZirconiumZr91.22414.5979
GoldAu196.96656919.9276
SilverAg107.868215.4368
UraniumU238.02891111.9972
AstatineAt209.987148110.5839
HafniumHf178.4918.9963
PraseodymiumPr140.9076517.1021
CarbonC12.0107159.0805
HydrogenH1.00794241.2193
HeliumHe4.00260220.4035
BerylliumBe9.01218220.9085
LithiumLi6.94120.6997
BoronB10.81121.0898
NitrogenN14.006721.4119
OxygenO15.999421.6128
FluorineF18.998403221.9151
NeonNe20.179722.0342
SodiumNa22.9897692822.3175
AluminumAl26.981538622.7199
ArgonAr39.94824.0270

Computing molar mass step by step

First, compute the number of each atom in GeAsYZr(HHeBeLiBCNOFNeNaAlAr)2AuAgUAtHf(C6H5)(CH3)(C2H5)Pr(C4H9):
Ge: 1, As: 1, Y: 1, Zr: 1, Au: 1, Ag: 1, U: 1, At: 1, Hf: 1, Pr: 1, C: 15, H: 24, He: 2, Be: 2, Li: 2, B: 2, N: 2, O: 2, F: 2, Ne: 2, Na: 2, Al: 2, Ar: 2

Then, lookup atomic weights for each element in periodic table:
Ge: 72.64, As: 74.9216, Y: 88.90585, Zr: 91.224, Au: 196.966569, Ag: 107.8682, U: 238.02891, At: 209.987148, Hf: 178.49, Pr: 140.90765, C: 12.0107, H: 1.00794, He: 4.002602, Be: 9.012182, Li: 6.941, B: 10.811, N: 14.0067, O: 15.9994, F: 18.9984032, Ne: 20.1797, Na: 22.98976928, Al: 26.9815386, Ar: 39.948

Now, compute the sum of products of number of atoms to the atomic weight:
Molar mass (GeAsYZr(HHeBeLiBCNOFNeNaAlAr)2AuAgUAtHf(C6H5)(CH3)(C2H5)Pr(C4H9)) = ∑ Counti * Weighti =
Count(Ge) * Weight(Ge) + Count(As) * Weight(As) + Count(Y) * Weight(Y) + Count(Zr) * Weight(Zr) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(U) * Weight(U) + Count(At) * Weight(At) + Count(Hf) * Weight(Hf) + Count(Pr) * Weight(Pr) + Count(C) * Weight(C) + Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Be) * Weight(Be) + Count(Li) * Weight(Li) + Count(B) * Weight(B) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(F) * Weight(F) + Count(Ne) * Weight(Ne) + Count(Na) * Weight(Na) + Count(Al) * Weight(Al) + Count(Ar) * Weight(Ar) =
1 * 72.64 + 1 * 74.9216 + 1 * 88.90585 + 1 * 91.224 + 1 * 196.966569 + 1 * 107.8682 + 1 * 238.02891 + 1 * 209.987148 + 1 * 178.49 + 1 * 140.90765 + 15 * 12.0107 + 24 * 1.00794 + 2 * 4.002602 + 2 * 9.012182 + 2 * 6.941 + 2 * 10.811 + 2 * 14.0067 + 2 * 15.9994 + 2 * 18.9984032 + 2 * 20.1797 + 2 * 22.98976928 + 2 * 26.9815386 + 2 * 39.948 =
1984.0316 g/mol


Mass percent compositionAtomic percent composition

Formula in Hill system is C15H24AgAl2Ar2AsAtAuB2Be2F2GeHe2HfLi2N2Na2Ne2O2PrUYZr

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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