Molar Mass of NaClO2 (Sodium Chlorite)

Molar Mass Calculator

What is the molar mass of NaClO₂?

Answer

M(NaClO₂) ≈

90.44 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Cl: 35.45.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Nasodium	1	22.990	22.990 w ≈ 25.42%	≈ 25.42%
Clchlorine	1	35.45	35.45 w ≈ 39.20%	≈ 39.20%
Ooxygen	2	15.999	31.998 w ≈ 35.38%	≈ 35.38%
Σ = 90.438 ≈ 90.44 g/mol w = 100%				100%

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

Mass fractions of the elements

Cl 39.20%O 35.38%

Na 25.42%

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Molar masses of substances nearby

Formula	M, g/mol
Fe(OH)₂ (ferrous hydroxide)	89.859
H₂C₂O₄ (oxalic acid)	90.034
HC₃H₅O₃ (DL-lactic acid)	90.078
NaClO₂ (sodium chlorite)	90.44
NiS (nickel(II) sulfide)	90.75
Zr (zirconium)	91.222
N₂O₄ (dinitrogen tetroxide)	92.010

FAQ

What is the molar mass of NaClO2?

M(NaClO₂) ≈ 90.44 g/mol

How to calculate the molar mass of NaClO₂?

Add up the atomic weights of all the atoms in the formula: 22.990 + 35.45 + 2 × 15.999 = 90.438 ≈ 90.44 g/mol.

How many grams are in 2 moles of NaClO₂?

m = n × M = 2 mol × 90.44 g/mol = 180.88 g.

See Also