C39Cr2049Cu7914Fe7171PbMn216Mo77Ni1072O7P9Si211S6Zn1358 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁PbMn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉Si₂₁₁S₆Zn₁₃₅₈ is 1188053.2579 g/mol

Convert between C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁PbMn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉Si₂₁₁S₆Zn₁₃₅₈ weight and moles

Compound	Moles		Weight, g
C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁PbMn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉Si₂₁₁S₆Zn₁₃₅₈

Elemental composition of C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁PbMn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉Si₂₁₁S₆Zn₁₃₅₈

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	39	0.0394
Chromium	Cr	51.9961	2049	8.9676
Copper	Cu	63.546	7914	42.3300
Iron	Fe	55.845	7171	33.7076
Lead	Pb	207.2	1	0.0174
Manganese	Mn	54.938045	216	0.9988
Molybdenum	Mo	95.96	77	0.6219
Nickel	Ni	58.6934	1072	5.2960
Oxygen	O	15.9994	7	0.0094
Phosphorus	P	30.973762	9	0.0235
Silicon	Si	28.0855	211	0.4988
Sulfur	S	32.065	6	0.0162
Zinc	Zn	65.38	1358	7.4732

Computing molar mass step by step
First, compute the number of each atom in C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁PbMn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉Si₂₁₁S₆Zn₁₃₅₈: C: 39, Cr: 2049, Cu: 7914, Fe: 7171, Pb: 1, Mn: 216, Mo: 77, Ni: 1072, O: 7, P: 9, Si: 211, S: 6, Zn: 1358 Then, lookup atomic weights for each element in periodic table: C: 12.0107, Cr: 51.9961, Cu: 63.546, Fe: 55.845, Pb: 207.2, Mn: 54.938045, Mo: 95.96, Ni: 58.6934, O: 15.9994, P: 30.973762, Si: 28.0855, S: 32.065, Zn: 65.38 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁PbMn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉Si₂₁₁S₆Zn₁₃₅₈) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(Cr) * Weight(Cr) + Count(Cu) * Weight(Cu) + Count(Fe) * Weight(Fe) + Count(Pb) * Weight(Pb) + Count(Mn) * Weight(Mn) + Count(Mo) * Weight(Mo) + Count(Ni) * Weight(Ni) + Count(O) * Weight(O) + Count(P) * Weight(P) + Count(Si) * Weight(Si) + Count(S) * Weight(S) + Count(Zn) * Weight(Zn) = 39 * 12.0107 + 2049 * 51.9961 + 7914 * 63.546 + 7171 * 55.845 + 1 * 207.2 + 216 * 54.938045 + 77 * 95.96 + 1072 * 58.6934 + 7 * 15.9994 + 9 * 30.973762 + 211 * 28.0855 + 6 * 32.065 + 1358 * 65.38 = 1188053.2579 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₃₉Cr₂₀₄₉Cu₇₉₁₄Fe₇₁₇₁Mn₂₁₆Mo₇₇Ni₁₀₇₂O₇P₉PbS₆Si₂₁₁Zn₁₃₅₈

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

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

molecular weights calculated today

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