Question

What are the values of ka1 and ka2 for hydrosulfuric acid?

1) 1.00×10-7 and 1.00×10-19
2) 1.00×10-7 and 1.00×10-19
3) 1.00×10-7 and 1.00×10-19
4) 1.00×10-7 and 1.00×10-19

Answer 1

The values of ka1 and ka2 for hydrosulfuric acid (H2SO3) are 1.8 × 10-5 and 4.6 × 10-4, respectively. Hydrosulfuric acid is a weak acid and exhibits dissociation in two stages.

Step-by-step explanation:

The values of ka1 and ka2 for hydrosulfuric acid (H2SO3) are 1.8 × 10-5 and 4.6 × 10-4, respectively.

The acid-ionization constants determine the strength of acids. A larger Ka value indicates a stronger acid and a higher concentration of H+ ions at equilibrium.

Hydrosulfuric acid is a weak acid and exhibits dissociation in two stages:

H2SO3 ⇌ H+ + HSO3-

HSO3- ⇌ H+ + SO3^2-