H660S22P16Mg1La6N44I5K22Na34Au6Pt6Hg3 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₆₆₀S₂₂P₁₆Mg₁La₆N₄₄I₅K₂₂Na₃₄Au₆Pt₆Hg₃ is 8570.6937 g/mol

Convert between H₆₆₀S₂₂P₁₆Mg₁La₆N₄₄I₅K₂₂Na₃₄Au₆Pt₆Hg₃ weight and moles

Compound	Moles		Weight, g
H₆₆₀S₂₂P₁₆Mg₁La₆N₄₄I₅K₂₂Na₃₄Au₆Pt₆Hg₃

Elemental composition of H₆₆₀S₂₂P₁₆Mg₁La₆N₄₄I₅K₂₂Na₃₄Au₆Pt₆Hg₃

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	660	7.7618
Sulfur	S	32.065	22	8.2307
Phosphorus	P	30.973762	16	5.7823
Magnesium	Mg	24.3050	1	0.2836
Lanthanum	La	138.90547	6	9.7242
Nitrogen	N	14.0067	44	7.1907
Iodine	I	126.90447	5	7.4034
Potassium	K	39.0983	22	10.0361
Sodium	Na	22.98976928	34	9.1201
Gold	Au	196.966569	6	13.7888
Platinum	Pt	195.084	6	13.6571
Mercury	Hg	200.59	3	7.0213

Computing molar mass step by step
First, compute the number of each atom in H₆₆₀S₂₂P₁₆Mg₁La₆N₄₄I₅K₂₂Na₃₄Au₆Pt₆Hg₃: H: 660, S: 22, P: 16, Mg: 1, La: 6, N: 44, I: 5, K: 22, Na: 34, Au: 6, Pt: 6, Hg: 3 Then, lookup atomic weights for each element in periodic table: H: 1.00794, S: 32.065, P: 30.973762, Mg: 24.305, La: 138.90547, N: 14.0067, I: 126.90447, K: 39.0983, Na: 22.98976928, Au: 196.966569, Pt: 195.084, Hg: 200.59 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₆₆₀S₂₂P₁₆Mg₁La₆N₄₄I₅K₂₂Na₃₄Au₆Pt₆Hg₃) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(S) * Weight(S) + Count(P) * Weight(P) + Count(Mg) * Weight(Mg) + Count(La) * Weight(La) + Count(N) * Weight(N) + Count(I) * Weight(I) + Count(K) * Weight(K) + Count(Na) * Weight(Na) + Count(Au) * Weight(Au) + Count(Pt) * Weight(Pt) + Count(Hg) * Weight(Hg) = 660 * 1.00794 + 22 * 32.065 + 16 * 30.973762 + 1 * 24.305 + 6 * 138.90547 + 44 * 14.0067 + 5 * 126.90447 + 22 * 39.0983 + 34 * 22.98976928 + 6 * 196.966569 + 6 * 195.084 + 3 * 200.59 = 8570.6937 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Au₆H₆₆₀Hg₃I₅K₂₂La₆MgN₄₄Na₃₄P₁₆Pt₆S₂₂

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

Please let us know how we can improve this web app.

How to cite?

Choose languageDeutschEnglishEspañol Français Italiano Nederlands Polski Português Русский 中文日本語 한국어