H3O9I8B7F3C9N4F5SI3Og10CU7As3Xe6He9Y4U8NH6Th4Cm6BK9Ne7Og4Lv4 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of H₃O₉I₈B₇F₃C₉N₄F₅SI₃Og₁₀CU₇As₃Xe₆He₉Y₄U₈NH₆Th₄Cm₆BK₉Ne₇Og₄Lv₄ is 9863.9624 g/mol

Convert between H₃O₉I₈B₇F₃C₉N₄F₅SI₃Og₁₀CU₇As₃Xe₆He₉Y₄U₈NH₆Th₄Cm₆BK₉Ne₇Og₄Lv₄ weight and moles

Compound	Moles		Weight, g
H₃O₉I₈B₇F₃C₉N₄F₅SI₃Og₁₀CU₇As₃Xe₆He₉Y₄U₈NH₆Th₄Cm₆BK₉Ne₇Og₄Lv₄

Elemental composition of H₃O₉I₈B₇F₃C₉N₄F₅SI₃Og₁₀CU₇As₃Xe₆He₉Y₄U₈NH₆Th₄Cm₆BK₉Ne₇Og₄Lv₄

Element	Symbol	Atomic weight	Atoms	Mass percent
Hydrogen	H	1.00794	9	0.0920
Oxygen	O	15.9994	9	1.4598
Iodine	I	126.90447	11	14.1520
Boron	B	10.811	8	0.8768
Fluorine	F	18.9984032	8	1.5408
Carbon	C	12.0107	10	1.2176
Nitrogen	N	14.0067	5	0.7100
Sulfur	S	32.065	1	0.3251
Oganesson	Og	0.0000000	14	0.0000
Uranium	U	238.02891	15	36.1967
Arsenic	As	74.92160	3	2.2786
Xenon	Xe	131.293	6	7.9862
Helium	He	4.002602	9	0.3652
Yttrium	Y	88.90585	4	3.6053
Thorium	Th	232.03806	4	9.4095
Curium	Cm	243.061389	6	14.7848
Potassium	K	39.0983	9	3.5674
Neon	Ne	20.1797	7	1.4321
Livermorium	Lv	0.0000000	4	0.0000

Computing molar mass step by step
First, compute the number of each atom in H₃O₉I₈B₇F₃C₉N₄F₅SI₃Og₁₀CU₇As₃Xe₆He₉Y₄U₈NH₆Th₄Cm₆BK₉Ne₇Og₄Lv₄: H: 9, O: 9, I: 11, B: 8, F: 8, C: 10, N: 5, S: 1, Og: 14, U: 15, As: 3, Xe: 6, He: 9, Y: 4, Th: 4, Cm: 6, K: 9, Ne: 7, Lv: 4 Then, lookup atomic weights for each element in periodic table: H: 1.00794, O: 15.9994, I: 126.90447, B: 10.811, F: 18.9984032, C: 12.0107, N: 14.0067, S: 32.065, Og: 0, U: 238.02891, As: 74.9216, Xe: 131.293, He: 4.002602, Y: 88.90585, Th: 232.03806, Cm: 243.0613891, K: 39.0983, Ne: 20.1797, Lv: 0 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (H₃O₉I₈B₇F₃C₉N₄F₅SI₃Og₁₀CU₇As₃Xe₆He₉Y₄U₈NH₆Th₄Cm₆BK₉Ne₇Og₄Lv₄) = ∑ Count_i * Weight_i = Count(H) * Weight(H) + Count(O) * Weight(O) + Count(I) * Weight(I) + Count(B) * Weight(B) + Count(F) * Weight(F) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(S) * Weight(S) + Count(Og) * Weight(Og) + Count(U) * Weight(U) + Count(As) * Weight(As) + Count(Xe) * Weight(Xe) + Count(He) * Weight(He) + Count(Y) * Weight(Y) + Count(Th) * Weight(Th) + Count(Cm) * Weight(Cm) + Count(K) * Weight(K) + Count(Ne) * Weight(Ne) + Count(Lv) * Weight(Lv) = 9 * 1.00794 + 9 * 15.9994 + 11 * 126.90447 + 8 * 10.811 + 8 * 18.9984032 + 10 * 12.0107 + 5 * 14.0067 + 1 * 32.065 + 14 * 0 + 15 * 238.02891 + 3 * 74.9216 + 6 * 131.293 + 9 * 4.002602 + 4 * 88.90585 + 4 * 232.03806 + 6 * 243.0613891 + 9 * 39.0983 + 7 * 20.1797 + 4 * 0 = 9863.9624 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₁₀H₉As₃B₈Cm₆F₈He₉I₁₁K₉Lv₄N₅Ne₇O₉Og₁₄STh₄U₁₅Xe₆Y₄

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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