HLi2Na3P4Rb5Cs6Fr7Be8Mg9Ca10Sr11Ba12Ra13B14Ga15In16Tl17C18 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of HLi₂Na₃P₄Rb₅Cs₆Fr₇Be₈Mg₉Ca₁₀Sr₁₁Ba₁₂Ra₁₃B₁₄Ga₁₅In₁₆Tl₁₇C₁₈ is 15960.3566 g/mol

Convert between HLi₂Na₃P₄Rb₅Cs₆Fr₇Be₈Mg₉Ca₁₀Sr₁₁Ba₁₂Ra₁₃B₁₄Ga₁₅In₁₆Tl₁₇C₁₈ weight and moles

Compound	Moles		Weight, g
HLi₂Na₃P₄Rb₅Cs₆Fr₇Be₈Mg₉Ca₁₀Sr₁₁Ba₁₂Ra₁₃B₁₄Ga₁₅In₁₆Tl₁₇C₁₈

Elemental composition of HLi₂Na₃P₄Rb₅Cs₆Fr₇Be₈Mg₉Ca₁₀Sr₁₁Ba₁₂Ra₁₃B₁₄Ga₁₅In₁₆Tl₁₇C₁₈

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	1	0.0063
Lithium	Li	6.941	2	0.0870
Sodium	Na	22.98976928	3	0.4321
Phosphorus	P	30.973762	4	0.7763
Rubidium	Rb	85.4678	5	2.6775
Cesium	Cs	132.9054519	6	4.9963
Francium	Fr	223.019736	7	9.7813
Beryllium	Be	9.012182	8	0.4517
Magnesium	Mg	24.3050	9	1.3706
Calcium	Ca	40.078	10	2.5111
Strontium	Sr	87.62	11	6.0388
Barium	Ba	137.327	12	10.3251
Radium	Ra	226.025410	13	18.4102
Boron	B	10.811	14	0.9483
Gallium	Ga	69.723	15	6.5528
Indium	In	114.818	16	11.5103
Thallium	Tl	204.3833	17	21.7697
Carbon	C	12.0107	18	1.3546

Computing molar mass step by step
First, compute the number of each atom in HLi₂Na₃P₄Rb₅Cs₆Fr₇Be₈Mg₉Ca₁₀Sr₁₁Ba₁₂Ra₁₃B₁₄Ga₁₅In₁₆Tl₁₇C₁₈: H: 1, Li: 2, Na: 3, P: 4, Rb: 5, Cs: 6, Fr: 7, Be: 8, Mg: 9, Ca: 10, Sr: 11, Ba: 12, Ra: 13, B: 14, Ga: 15, In: 16, Tl: 17, C: 18 Then, lookup atomic weights for each element in periodic table: H: 1.00794, Li: 6.941, Na: 22.98976928, P: 30.973762, Rb: 85.4678, Cs: 132.9054519, Fr: 223.0197359, Be: 9.012182, Mg: 24.305, Ca: 40.078, Sr: 87.62, Ba: 137.327, Ra: 226.0254098, B: 10.811, Ga: 69.723, In: 114.818, Tl: 204.3833, C: 12.0107 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (HLi₂Na₃P₄Rb₅Cs₆Fr₇Be₈Mg₉Ca₁₀Sr₁₁Ba₁₂Ra₁₃B₁₄Ga₁₅In₁₆Tl₁₇C₁₈) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(Li) * Weight(Li) + Count(Na) * Weight(Na) + Count(P) * Weight(P) + Count(Rb) * Weight(Rb) + Count(Cs) * Weight(Cs) + Count(Fr) * Weight(Fr) + Count(Be) * Weight(Be) + Count(Mg) * Weight(Mg) + Count(Ca) * Weight(Ca) + Count(Sr) * Weight(Sr) + Count(Ba) * Weight(Ba) + Count(Ra) * Weight(Ra) + Count(B) * Weight(B) + Count(Ga) * Weight(Ga) + Count(In) * Weight(In) + Count(Tl) * Weight(Tl) + Count(C) * Weight(C) = 1 * 1.00794 + 2 * 6.941 + 3 * 22.98976928 + 4 * 30.973762 + 5 * 85.4678 + 6 * 132.9054519 + 7 * 223.0197359 + 8 * 9.012182 + 9 * 24.305 + 10 * 40.078 + 11 * 87.62 + 12 * 137.327 + 13 * 226.0254098 + 14 * 10.811 + 15 * 69.723 + 16 * 114.818 + 17 * 204.3833 + 18 * 12.0107 = 15960.3566 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₈HB₁₄Ba₁₂Be₈Ca₁₀Cs₆Fr₇Ga₁₅In₁₆Li₂Mg₉Na₃P₄Ra₁₃Rb₅Sr₁₁Tl₁₇

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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