Hs999Lv99Sg9Db9Rf9No9Md9Fm9Es9Cf9Bk9Cm9Am9Pu9Ts99U9Pa9Th9Ac9 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of Hs₉₉₉Lv₉₉Sg₉Db₉Rf₉No₉Md₉Fm₉Es₉Cf₉Bk₉Cm₉Am₉Pu₉Ts₉₉U₉Pa₉Th₉Ac₉ is 334587.8332 g/mol

Convert between Hs₉₉₉Lv₉₉Sg₉Db₉Rf₉No₉Md₉Fm₉Es₉Cf₉Bk₉Cm₉Am₉Pu₉Ts₉₉U₉Pa₉Th₉Ac₉ weight and moles

Compound	Moles		Weight, g
Hs₉₉₉Lv₉₉Sg₉Db₉Rf₉No₉Md₉Fm₉Es₉Cf₉Bk₉Cm₉Am₉Pu₉Ts₉₉U₉Pa₉Th₉Ac₉

Elemental composition of Hs₉₉₉Lv₉₉Sg₉Db₉Rf₉No₉Md₉Fm₉Es₉Cf₉Bk₉Cm₉Am₉Pu₉Ts₉₉U₉Pa₉Th₉Ac₉

Element	Symbol	Atomic weight	Atoms	Mass percent
Hassium	Hs	270.1347	999	80.6558
Livermorium	Lv	0.0000000	99	0.0000
Seaborgium	Sg	271.1335	9	0.7293
Dubnium	Db	268.1255	9	0.7212
Rutherfordium	Rf	265.1167	9	0.7131
Nobelium	No	259.1010	9	0.6969
Mendelevium	Md	258.098431	9	0.6943
Fermium	Fm	257.095105	9	0.6916
Einsteinium	Es	252.08298	9	0.6781
Californium	Cf	249.074853	9	0.6700
Berkelium	Bk	247.070307	9	0.6646
Curium	Cm	243.061389	9	0.6538
Americium	Am	241.056829	9	0.6484
Plutonium	Pu	238.049560	9	0.6403
Tennessine	Ts	292.208	99	8.6460
Uranium	U	238.02891	9	0.6403
Protactinium	Pa	231.03588	9	0.6215
Thorium	Th	232.03806	9	0.6242
Actinium	Ac	227.027752	9	0.6107

Computing molar mass step by step
First, compute the number of each atom in Hs₉₉₉Lv₉₉Sg₉Db₉Rf₉No₉Md₉Fm₉Es₉Cf₉Bk₉Cm₉Am₉Pu₉Ts₉₉U₉Pa₉Th₉Ac₉: Hs: 999, Lv: 99, Sg: 9, Db: 9, Rf: 9, No: 9, Md: 9, Fm: 9, Es: 9, Cf: 9, Bk: 9, Cm: 9, Am: 9, Pu: 9, Ts: 99, U: 9, Pa: 9, Th: 9, Ac: 9 Then, lookup atomic weights for each element in periodic table: Hs: 270.13465, Lv: 0, Sg: 271.13347, Db: 268.12545, Rf: 265.1167, No: 259.10103, Md: 258.098431, Fm: 257.095105, Es: 252.08298, Cf: 249.0748535, Bk: 247.070307, Cm: 243.0613891, Am: 241.0568291, Pu: 238.0495599, Ts: 292.20755, U: 238.02891, Pa: 231.03588, Th: 232.03806, Ac: 227.0277521 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (Hs₉₉₉Lv₉₉Sg₉Db₉Rf₉No₉Md₉Fm₉Es₉Cf₉Bk₉Cm₉Am₉Pu₉Ts₉₉U₉Pa₉Th₉Ac₉) = ∑ Count_i * Weight_i = Count(Hs) * Weight(Hs) + Count(Lv) * Weight(Lv) + Count(Sg) * Weight(Sg) + Count(Db) * Weight(Db) + Count(Rf) * Weight(Rf) + Count(No) * Weight(No) + Count(Md) * Weight(Md) + Count(Fm) * Weight(Fm) + Count(Es) * Weight(Es) + Count(Cf) * Weight(Cf) + Count(Bk) * Weight(Bk) + Count(Cm) * Weight(Cm) + Count(Am) * Weight(Am) + Count(Pu) * Weight(Pu) + Count(Ts) * Weight(Ts) + Count(U) * Weight(U) + Count(Pa) * Weight(Pa) + Count(Th) * Weight(Th) + Count(Ac) * Weight(Ac) = 999 * 270.13465 + 99 * 0 + 9 * 271.13347 + 9 * 268.12545 + 9 * 265.1167 + 9 * 259.10103 + 9 * 258.098431 + 9 * 257.095105 + 9 * 252.08298 + 9 * 249.0748535 + 9 * 247.070307 + 9 * 243.0613891 + 9 * 241.0568291 + 9 * 238.0495599 + 99 * 292.20755 + 9 * 238.02891 + 9 * 231.03588 + 9 * 232.03806 + 9 * 227.0277521 = 334587.8332 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ac₉Am₉Bk₉Cf₉Cm₉Db₉Es₉Fm₉Hs₉₉₉Lv₉₉Md₉No₉Pa₉Pu₉Rf₉Sg₉Th₉Ts₉₉U₉

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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