Molar mass of sulfurous acid (H2SO3)

The molar mass of sulfurous acid (H2SO3) is 82.073 g/mol.

Step-by-step calculation

Element	Atoms	Atomic mass	Subtotal
Hydrogen	× 2	1.008	= 2.016
Sulfur	× 1	32.06	= 32.06
Oxygen	× 3	15.999	= 47.997
Total			82.073 g/mol

Percent composition by element

Hydrogen 2.46%
Sulfur 39.06%
Oxygen 58.48%

Try another formula

H₂O NaCl CO₂ C₆H₁₂O₆ H₂SO₄ Ca(OH)₂ CuSO₄·5H₂O C₈H₁₀N₄O₂

Could not read that formula

Related compounds

H₂SO₄ Sulfuric acid KAl(SO₄)₂·12H₂O Potassium alum CuSO₄·5H₂O Copper(II) sulfate pentahydrate (NH₄)₂SO₄ Ammonium sulfate MgSO₄·7H₂O Magnesium sulfate heptahydrate CaSO₄·2H₂O Calcium sulfate dihydrate

FAQ

What is the molar mass of H2SO3?

The molar mass of sulfurous acid (H2SO3) is 82.073 g/mol.

How do you calculate the molar mass of H2SO3?

Multiply the atomic mass of each element by the number of its atoms in H2SO3, then add the results: 2 × 1.008 (H) + 1 × 32.06 (S) + 3 × 15.999 (O) = 82.073 g/mol.

What percentage of H2SO3 is Oxygen?

Oxygen makes up 58.48% of the mass of sulfurous acid (H2SO3).