Al7Pb3Ir2Au9Li5K3Na4C5H7N3O2I4P3S2Cl7F3Se7(C2H5)4 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Al₇Pb₃Ir₂Au₉Li₅K₃Na₄C₅H₇N₃O₂I₄P₃S₂Cl₇F₃Se₇(C₂H₅)₄ is 4991.4906 g/mol

Convert between Al₇Pb₃Ir₂Au₉Li₅K₃Na₄C₅H₇N₃O₂I₄P₃S₂Cl₇F₃Se₇(C₂H₅)₄ weight and moles

Compound	Moles		Weight, g
Al₇Pb₃Ir₂Au₉Li₅K₃Na₄C₅H₇N₃O₂I₄P₃S₂Cl₇F₃Se₇(C₂H₅)₄

Elemental composition of Al₇Pb₃Ir₂Au₉Li₅K₃Na₄C₅H₇N₃O₂I₄P₃S₂Cl₇F₃Se₇(C₂H₅)₄

Element	Symbol	Atomic weight	Atoms	Mass percent
Aluminum	Al	26.9815386	7	3.7839
Lead	Pb	207.2	3	12.4532
Iridium	Ir	192.217	2	7.7018
Gold	Au	196.966569	9	35.5144
Lithium	Li	6.941	5	0.6953
Potassium	K	39.0983	3	2.3499
Sodium	Na	22.98976928	4	1.8423
Carbon	C	12.0107	13	3.1281
Hydrogen	H	1.00794	27	0.5452
Nitrogen	N	14.0067	3	0.8418
Oxygen	O	15.9994	2	0.6411
Iodine	I	126.90447	4	10.1697
Phosphorus	P	30.973762	3	1.8616
Sulfur	S	32.065	2	1.2848
Chlorine	Cl	35.453	7	4.9719
Fluorine	F	18.9984032	3	1.1418
Selenium	Se	78.96	7	11.0732

Computing molar mass step by step
First, compute the number of each atom in Al₇Pb₃Ir₂Au₉Li₅K₃Na₄C₅H₇N₃O₂I₄P₃S₂Cl₇F₃Se₇(C₂H₅)₄: Al: 7, Pb: 3, Ir: 2, Au: 9, Li: 5, K: 3, Na: 4, C: 13, H: 27, N: 3, O: 2, I: 4, P: 3, S: 2, Cl: 7, F: 3, Se: 7 Then, lookup atomic weights for each element in periodic table: Al: 26.9815386, Pb: 207.2, Ir: 192.217, Au: 196.966569, Li: 6.941, K: 39.0983, Na: 22.98976928, C: 12.0107, H: 1.00794, N: 14.0067, O: 15.9994, I: 126.90447, P: 30.973762, S: 32.065, Cl: 35.453, F: 18.9984032, Se: 78.96 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Al₇Pb₃Ir₂Au₉Li₅K₃Na₄C₅H₇N₃O₂I₄P₃S₂Cl₇F₃Se₇(C₂H₅)₄) = ∑ Count_i * Weight_i = Count(Al) * Weight(Al) + Count(Pb) * Weight(Pb) + Count(Ir) * Weight(Ir) + Count(Au) * Weight(Au) + Count(Li) * Weight(Li) + Count(K) * Weight(K) + Count(Na) * Weight(Na) + Count(C) * Weight(C) + Count(H) * Weight(H) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(I) * Weight(I) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(F) * Weight(F) + Count(Se) * Weight(Se) = 7 * 26.9815386 + 3 * 207.2 + 2 * 192.217 + 9 * 196.966569 + 5 * 6.941 + 3 * 39.0983 + 4 * 22.98976928 + 13 * 12.0107 + 27 * 1.00794 + 3 * 14.0067 + 2 * 15.9994 + 4 * 126.90447 + 3 * 30.973762 + 2 * 32.065 + 7 * 35.453 + 3 * 18.9984032 + 7 * 78.96 = 4991.4906 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₃H₂₇Al₇Au₉Cl₇F₃I₄Ir₂K₃Li₅N₃Na₄O₂P₃Pb₃S₂Se₇

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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