Molar Mass of AlI3 (Aluminum Iodide)

Molar Mass Calculator

What is the molar mass of AlI₃?

Answer

M(AlI₃) ≈

407.68 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — I: 126.90.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Alaluminium	1	26.982	26.982 w ≈ 6.62%	≈ 6.62%
Iiodine	3	126.90	380.70 w ≈ 93.38%	≈ 93.38%
Σ = 407.682 ≈ 407.68 g/mol w = 100%				100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

I 93.38%

Al 6.62%

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Molar masses of substances nearby

Formula	M, g/mol
CHI₃ (iodoform)	393.72
C₁₂H₁₉Cl₃O₈ (sucralose)	397.63
Fe₂(SO₄)₃ (ferric sulfate)	399.86
AlI₃ (aluminum iodide)	407.68
C₁₂H₂₂CaO₁₄ (calcium gluconate)	430.372
HgI₂ (mercury(II) iodide)	454.39
PbI₂ (lead(II) iodide)	461.0

FAQ

What is the molar mass of AlI3?

M(AlI₃) ≈ 407.68 g/mol

How to calculate the molar mass of AlI₃?

Add up the atomic weights of all the atoms in the formula: 26.982 + 3 × 126.90 = 407.682 ≈ 407.68 g/mol.

How many grams are in 2 moles of AlI₃?

m = n × M = 2 mol × 407.68 g/mol = 815.36 g.

See Also