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Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of O10F1C10N6H15K1B3I1P1S2U1V1W1Y1Zn2Zr6Yb9Xe12Ac3Ag7 is 6500.7812 g/mol

Convert between O10F1C10N6H15K1B3I1P1S2U1V1W1Y1Zn2Zr6Yb9Xe12Ac3Ag7 weight and moles
CompoundMolesWeight, g
O10F1C10N6H15K1B3I1P1S2U1V1W1Y1Zn2Zr6Yb9Xe12Ac3Ag7

Elemental composition of O10F1C10N6H15K1B3I1P1S2U1V1W1Y1Zn2Zr6Yb9Xe12Ac3Ag7
ElementSymbolAtomic weightAtomsMass percent
OxygenO15.9994102.4612
FluorineF18.998403210.2922
CarbonC12.0107101.8476
NitrogenN14.006761.2928
HydrogenH1.00794150.2326
PotassiumK39.098310.6014
BoronB10.81130.4989
IodineI126.9044711.9521
PhosphorusP30.97376210.4765
SulfurS32.06520.9865
UraniumU238.0289113.6615
VanadiumV50.941510.7836
TungstenW183.8412.8280
YttriumY88.9058511.3676
ZincZn65.3822.0115
ZirconiumZr91.22468.4197
YtterbiumYb173.054923.9584
XenonXe131.2931224.2358
ActiniumAc227.027752310.4769
SilverAg107.8682711.6152

Computing molar mass step by step

First, compute the number of each atom in O10F1C10N6H15K1B3I1P1S2U1V1W1Y1Zn2Zr6Yb9Xe12Ac3Ag7:
O: 10, F: 1, C: 10, N: 6, H: 15, K: 1, B: 3, I: 1, P: 1, S: 2, U: 1, V: 1, W: 1, Y: 1, Zn: 2, Zr: 6, Yb: 9, Xe: 12, Ac: 3, Ag: 7

Then, lookup atomic weights for each element in periodic table:
O: 15.9994, F: 18.9984032, C: 12.0107, N: 14.0067, H: 1.00794, K: 39.0983, B: 10.811, I: 126.90447, P: 30.973762, S: 32.065, U: 238.02891, V: 50.9415, W: 183.84, Y: 88.90585, Zn: 65.38, Zr: 91.224, Yb: 173.054, Xe: 131.293, Ac: 227.0277521, Ag: 107.8682

Now, compute the sum of products of number of atoms to the atomic weight:
Molar mass (O10F1C10N6H15K1B3I1P1S2U1V1W1Y1Zn2Zr6Yb9Xe12Ac3Ag7) = ∑ Counti * Weighti =
Count(O) * Weight(O) + Count(F) * Weight(F) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(H) * Weight(H) + Count(K) * Weight(K) + Count(B) * Weight(B) + Count(I) * Weight(I) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(U) * Weight(U) + Count(V) * Weight(V) + Count(W) * Weight(W) + Count(Y) * Weight(Y) + Count(Zn) * Weight(Zn) + Count(Zr) * Weight(Zr) + Count(Yb) * Weight(Yb) + Count(Xe) * Weight(Xe) + Count(Ac) * Weight(Ac) + Count(Ag) * Weight(Ag) =
10 * 15.9994 + 1 * 18.9984032 + 10 * 12.0107 + 6 * 14.0067 + 15 * 1.00794 + 1 * 39.0983 + 3 * 10.811 + 1 * 126.90447 + 1 * 30.973762 + 2 * 32.065 + 1 * 238.02891 + 1 * 50.9415 + 1 * 183.84 + 1 * 88.90585 + 2 * 65.38 + 6 * 91.224 + 9 * 173.054 + 12 * 131.293 + 3 * 227.0277521 + 7 * 107.8682 =
6500.7812 g/mol


Mass percent compositionAtomic percent composition

Formula in Hill system is C10H15Ac3Ag7B3FIKN6O10PS2UVWXe12YYb9Zn2Zr6

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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