Na24H45O3Cl2P2Ca85KMg6S5B2F6Al5Xe8PtAu5Bi12Hg22Cu32Tl22 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Na₂₄H₄₅O₃Cl₂P₂Ca₈₅KMg₆S₅B₂F₆Al₅Xe₈PtAu₅Bi₁₂Hg₂₂Cu₃₂Tl₂₂ is 20481.2771 g/mol

Convert between Na₂₄H₄₅O₃Cl₂P₂Ca₈₅KMg₆S₅B₂F₆Al₅Xe₈PtAu₅Bi₁₂Hg₂₂Cu₃₂Tl₂₂ weight and moles

Compound	Moles		Weight, g
Na₂₄H₄₅O₃Cl₂P₂Ca₈₅KMg₆S₅B₂F₆Al₅Xe₈PtAu₅Bi₁₂Hg₂₂Cu₃₂Tl₂₂

Elemental composition of Na₂₄H₄₅O₃Cl₂P₂Ca₈₅KMg₆S₅B₂F₆Al₅Xe₈PtAu₅Bi₁₂Hg₂₂Cu₃₂Tl₂₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Sodium	Na	22.98976928	24	2.6939
Hydrogen	H	1.00794	45	0.2215
Oxygen	O	15.9994	3	0.2344
Chlorine	Cl	35.453	2	0.3462
Phosphorus	P	30.973762	2	0.3025
Calcium	Ca	40.078	85	16.6329
Potassium	K	39.0983	1	0.1909
Magnesium	Mg	24.3050	6	0.7120
Sulfur	S	32.065	5	0.7828
Boron	B	10.811	2	0.1056
Fluorine	F	18.9984032	6	0.5566
Aluminum	Al	26.9815386	5	0.6587
Xenon	Xe	131.293	8	5.1283
Platinum	Pt	195.084	1	0.9525
Gold	Au	196.966569	5	4.8085
Bismuth	Bi	208.98040	12	12.2442
Mercury	Hg	200.59	22	21.5464
Copper	Cu	63.546	32	9.9284
Thallium	Tl	204.3833	22	21.9539

Computing molar mass step by step
First, compute the number of each atom in Na₂₄H₄₅O₃Cl₂P₂Ca₈₅KMg₆S₅B₂F₆Al₅Xe₈PtAu₅Bi₁₂Hg₂₂Cu₃₂Tl₂₂: Na: 24, H: 45, O: 3, Cl: 2, P: 2, Ca: 85, K: 1, Mg: 6, S: 5, B: 2, F: 6, Al: 5, Xe: 8, Pt: 1, Au: 5, Bi: 12, Hg: 22, Cu: 32, Tl: 22 Then, lookup atomic weights for each element in periodic table: Na: 22.98976928, H: 1.00794, O: 15.9994, Cl: 35.453, P: 30.973762, Ca: 40.078, K: 39.0983, Mg: 24.305, S: 32.065, B: 10.811, F: 18.9984032, Al: 26.9815386, Xe: 131.293, Pt: 195.084, Au: 196.966569, Bi: 208.9804, Hg: 200.59, Cu: 63.546, Tl: 204.3833 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Na₂₄H₄₅O₃Cl₂P₂Ca₈₅KMg₆S₅B₂F₆Al₅Xe₈PtAu₅Bi₁₂Hg₂₂Cu₃₂Tl₂₂) = ∑ Count_i * Weight_i = Count(Na) * Weight(Na) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Cl) * Weight(Cl) + Count(P) * Weight(P) + Count(Ca) * Weight(Ca) + Count(K) * Weight(K) + Count(Mg) * Weight(Mg) + Count(S) * Weight(S) + Count(B) * Weight(B) + Count(F) * Weight(F) + Count(Al) * Weight(Al) + Count(Xe) * Weight(Xe) + Count(Pt) * Weight(Pt) + Count(Au) * Weight(Au) + Count(Bi) * Weight(Bi) + Count(Hg) * Weight(Hg) + Count(Cu) * Weight(Cu) + Count(Tl) * Weight(Tl) = 24 * 22.98976928 + 45 * 1.00794 + 3 * 15.9994 + 2 * 35.453 + 2 * 30.973762 + 85 * 40.078 + 1 * 39.0983 + 6 * 24.305 + 5 * 32.065 + 2 * 10.811 + 6 * 18.9984032 + 5 * 26.9815386 + 8 * 131.293 + 1 * 195.084 + 5 * 196.966569 + 12 * 208.9804 + 22 * 200.59 + 32 * 63.546 + 22 * 204.3833 = 20481.2771 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Al₅Au₅B₂Bi₁₂Ca₈₅Cl₂Cu₃₂F₆H₄₅Hg₂₂KMg₆Na₂₄O₃P₂PtS₅Tl₂₂Xe₈

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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