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Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of CuSO4(H2OPLiAmCfFlScTiVFeCoNiCuZnGaGeAsSeBrKrLvIKNaRbSrCsB)5 is 11395.3806 g/mol

Convert between CuSO4(H2OPLiAmCfFlScTiVFeCoNiCuZnGaGeAsSeBrKrLvIKNaRbSrCsB)5 weight and moles
CompoundMolesWeight, g
CuSO4(H2OPLiAmCfFlScTiVFeCoNiCuZnGaGeAsSeBrKrLvIKNaRbSrCsB)5

Elemental composition of CuSO4(H2OPLiAmCfFlScTiVFeCoNiCuZnGaGeAsSeBrKrLvIKNaRbSrCsB)5
ElementSymbolAtomic weightAtomsMass percent
CopperCu63.54663.3459
SulfurS32.06510.2814
OxygenO15.999491.2636
HydrogenH1.00794100.0885
PhosphorusP30.97376251.3590
LithiumLi6.94150.3046
AmericiumAm241.056829510.5770
CaliforniumCf249.074853510.9288
FleroviumFl289.1873512.6888
ScandiumSc44.95591251.9725
TitaniumTi47.86752.1003
VanadiumV50.941552.2352
IronFe55.84552.4503
CobaltCo58.93319552.5858
NickelNi58.693452.5753
ZincZn65.3852.8687
GalliumGa69.72353.0593
GermaniumGe72.6453.1873
ArsenicAs74.9216053.2874
SeleniumSe78.9653.4646
BromineBr79.90453.5060
KryptonKr83.79853.6768
LivermoriumLv0.000000050.0000
IodineI126.9044755.5682
PotassiumK39.098351.7155
SodiumNa22.9897692851.0087
RubidiumRb85.467853.7501
StrontiumSr87.6253.8445
CesiumCs132.905451955.8315
BoronB10.81150.4744

Computing molar mass step by step

First, compute the number of each atom in CuSO4(H2OPLiAmCfFlScTiVFeCoNiCuZnGaGeAsSeBrKrLvIKNaRbSrCsB)5:
Cu: 6, S: 1, O: 9, H: 10, P: 5, Li: 5, Am: 5, Cf: 5, Fl: 5, Sc: 5, Ti: 5, V: 5, Fe: 5, Co: 5, Ni: 5, Zn: 5, Ga: 5, Ge: 5, As: 5, Se: 5, Br: 5, Kr: 5, Lv: 5, I: 5, K: 5, Na: 5, Rb: 5, Sr: 5, Cs: 5, B: 5

Then, lookup atomic weights for each element in periodic table:
Cu: 63.546, S: 32.065, O: 15.9994, H: 1.00794, P: 30.973762, Li: 6.941, Am: 241.0568291, Cf: 249.0748535, Fl: 289.18728, Sc: 44.955912, Ti: 47.867, V: 50.9415, Fe: 55.845, Co: 58.933195, Ni: 58.6934, Zn: 65.38, Ga: 69.723, Ge: 72.64, As: 74.9216, Se: 78.96, Br: 79.904, Kr: 83.798, Lv: 0, I: 126.90447, K: 39.0983, Na: 22.98976928, Rb: 85.4678, Sr: 87.62, Cs: 132.9054519, B: 10.811

Now, compute the sum of products of number of atoms to the atomic weight:
Molar mass (CuSO4(H2OPLiAmCfFlScTiVFeCoNiCuZnGaGeAsSeBrKrLvIKNaRbSrCsB)5) = ∑ Counti * Weighti =
Count(Cu) * Weight(Cu) + Count(S) * Weight(S) + Count(O) * Weight(O) + Count(H) * Weight(H) + Count(P) * Weight(P) + Count(Li) * Weight(Li) + Count(Am) * Weight(Am) + Count(Cf) * Weight(Cf) + Count(Fl) * Weight(Fl) + Count(Sc) * Weight(Sc) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) + Count(Fe) * Weight(Fe) + Count(Co) * Weight(Co) + Count(Ni) * Weight(Ni) + Count(Zn) * Weight(Zn) + Count(Ga) * Weight(Ga) + Count(Ge) * Weight(Ge) + Count(As) * Weight(As) + Count(Se) * Weight(Se) + Count(Br) * Weight(Br) + Count(Kr) * Weight(Kr) + Count(Lv) * Weight(Lv) + Count(I) * Weight(I) + Count(K) * Weight(K) + Count(Na) * Weight(Na) + Count(Rb) * Weight(Rb) + Count(Sr) * Weight(Sr) + Count(Cs) * Weight(Cs) + Count(B) * Weight(B) =
6 * 63.546 + 1 * 32.065 + 9 * 15.9994 + 10 * 1.00794 + 5 * 30.973762 + 5 * 6.941 + 5 * 241.0568291 + 5 * 249.0748535 + 5 * 289.18728 + 5 * 44.955912 + 5 * 47.867 + 5 * 50.9415 + 5 * 55.845 + 5 * 58.933195 + 5 * 58.6934 + 5 * 65.38 + 5 * 69.723 + 5 * 72.64 + 5 * 74.9216 + 5 * 78.96 + 5 * 79.904 + 5 * 83.798 + 5 * 0 + 5 * 126.90447 + 5 * 39.0983 + 5 * 22.98976928 + 5 * 85.4678 + 5 * 87.62 + 5 * 132.9054519 + 5 * 10.811 =
11395.3806 g/mol


Mass percent compositionAtomic percent composition

Formula in Hill system is Am5As5B5Br5Cf5Co5Cs5Cu6Fe5Fl5Ga5Ge5H10I5K5Kr5Li5Lv5Na5Ni5O9P5Rb5SSc5Se5Sr5Ti5V5Zn5

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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