Sulfur dioxide will react with water to form sulfurous acid (see balanced equation below) .
SO₂(g) + H₂O(l) $\to$ H₂SO₃(l)
What mass of sulfur dioxide is needed to prepare 21.06 g of H₂SO₃(l) ?

Question

Sulfur dioxide will react with water to form sulfurous acid (see balanced equation below). SO₂(g)+ H₂O(l)$\to$H₂SO₃(l) What mass of sulfur dioxide is needed to prepare 21.06 g of H₂SO₃(l)?

Quizplus · Accepted Answer

The molar mass of H₂SO₃ is approximately 82.07 g/mol, and the molar mass of SO₂ is approximately 64.07 g/mol. To find the mass of SO₂ needed, use the stoichiometry of the reaction: (21.06 g H₂SO₃) * (1 mol H₂SO₃ / 82.07 g H₂SO₃) * (1 mol SO₂ / 1 mol H₂SO₃) * (64.07 g SO₂ / 1 mol SO₂) = 16.44 g SO₂.

Sulfur Dioxide Will React with Water to Form Sulfurous Acid →\to→

Sulfur Dioxide Will React with Water to Form Sulfurous Acid $\to$