Question

Sulfur dioxide + water→Predict the product, write the balanced chemical reaction, include states of matter, for each set of starting materials

Answer 1

Step 1

The product here is H2SO3. Sulfur dioxide is dissolved in water to give solutions that contain sulfurous acid (H2SO3)

---------

Step 2

The reaction:

SO2 (g) + H2O (l) <=>H2SO3 (aq)

H2SO3 (aq) <=> H+ + HSO3- Ka1 (ionization constant)

HSO3- <=> H+ + SO3-2 Ka2

H2SO3 is a weak acid