Molar Mass of S8 (Octasulfur)

Molar Mass Calculator

What is the molar mass of S₈?

Answer

M(S₈) =

256.48 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

One S atom: M(S) = 32.06 g/mol; S₈ is eight atoms.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Ssulfur	8	32.06	256.48 w = 100.00%	100.00%

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

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Molar Mass of S (Sulfur): Step by Step

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Molar masses of substances nearby

Formula	M, g/mol
(NH₄)₂Cr₂O₇ (ammonium dichromate)	252.063
BaCrO₄ (barium chromate)	253.32
I₂ (iodine)	253.80
S₈ (octasulfur)	256.48
C₆H₅Na₃O₇ (trisodium citrate)	258.069
Ba(NO₃)₂ (barium nitrate)	261.34
Na₂Cr₂O₇ (sodium dichromate)	261.965

FAQ

What is the molar mass of S8?

M(S₈) = 256.48 g/mol

How to calculate the molar mass of S₈?

Add up the atomic weights of all the atoms in the formula: 8 × 32.06 = 256.48 g/mol.

How many grams are in 2 moles of S₈?

m = n × M = 2 mol × 256.48 g/mol = 512.96 g.

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