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Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Ti3Cr2Mn1Fe1CO1NI1CU25Zr1NB1Mg1SN2IN1BI1Zn1Al1SI56Ag1 is 14308.0278 g/mol

Convert between Ti3Cr2Mn1Fe1CO1NI1CU25Zr1NB1Mg1SN2IN1BI1Zn1Al1SI56Ag1 weight and moles
CompoundMolesWeight, g
Ti3Cr2Mn1Fe1CO1NI1CU25Zr1NB1Mg1SN2IN1BI1Zn1Al1SI56Ag1

Elemental composition of Ti3Cr2Mn1Fe1CO1NI1CU25Zr1NB1Mg1SN2IN1BI1Zn1Al1SI56Ag1
ElementSymbolAtomic weightAtomsMass percent
TitaniumTi47.86731.0036
ChromiumCr51.996120.7268
ManganeseMn54.93804510.3840
IronFe55.84510.3903
CarbonC12.010720.1679
OxygenO15.999410.1118
NitrogenN14.006750.4895
IodineI126.904475952.3298
UraniumU238.028912541.5901
ZirconiumZr91.22410.6376
BoronB10.81120.1511
MagnesiumMg24.305010.1699
SulfurS32.06520.4482
ZincZn65.3810.4569
AluminumAl26.981538610.1886
SilverAg107.868210.7539

Computing molar mass step by step

First, compute the number of each atom in Ti3Cr2Mn1Fe1CO1NI1CU25Zr1NB1Mg1SN2IN1BI1Zn1Al1SI56Ag1:
Ti: 3, Cr: 2, Mn: 1, Fe: 1, C: 2, O: 1, N: 5, I: 59, U: 25, Zr: 1, B: 2, Mg: 1, S: 2, Zn: 1, Al: 1, Ag: 1

Then, lookup atomic weights for each element in periodic table:
Ti: 47.867, Cr: 51.9961, Mn: 54.938045, Fe: 55.845, C: 12.0107, O: 15.9994, N: 14.0067, I: 126.90447, U: 238.02891, Zr: 91.224, B: 10.811, Mg: 24.305, S: 32.065, Zn: 65.38, Al: 26.9815386, Ag: 107.8682

Now, compute the sum of products of number of atoms to the atomic weight:
Molar mass (Ti3Cr2Mn1Fe1CO1NI1CU25Zr1NB1Mg1SN2IN1BI1Zn1Al1SI56Ag1) = ∑ Counti * Weighti =
Count(Ti) * Weight(Ti) + Count(Cr) * Weight(Cr) + Count(Mn) * Weight(Mn) + Count(Fe) * Weight(Fe) + Count(C) * Weight(C) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(I) * Weight(I) + Count(U) * Weight(U) + Count(Zr) * Weight(Zr) + Count(B) * Weight(B) + Count(Mg) * Weight(Mg) + Count(S) * Weight(S) + Count(Zn) * Weight(Zn) + Count(Al) * Weight(Al) + Count(Ag) * Weight(Ag) =
3 * 47.867 + 2 * 51.9961 + 1 * 54.938045 + 1 * 55.845 + 2 * 12.0107 + 1 * 15.9994 + 5 * 14.0067 + 59 * 126.90447 + 25 * 238.02891 + 1 * 91.224 + 2 * 10.811 + 1 * 24.305 + 2 * 32.065 + 1 * 65.38 + 1 * 26.9815386 + 1 * 107.8682 =
14308.0278 g/mol


Mass percent compositionAtomic percent composition

Formula in Hill system is C2AgAlB2Cr2FeI59MgMnN5OS2Ti3U25ZnZr

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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