6. Chemical Quantities & Aqueous Reactions
Electrolytes
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ANSWERS OPTIONS
A
H2SO3(aq) → 2 H+(aq) + SO32–(aq)
B
H2SO3(aq) ⇌ H+(aq) + SO3–(aq)
C
H2SO3(aq) ⇌ 2 H+(aq) + SO32–(aq)
D
H2SO3(aq) ⇌ H+(aq) + SO32–(aq)
Sulfurous acid (H2SO3) is formed and in equilibrium when sulfur dioxide (SO2) is dissolved in water. Provide the dissociation equation of H2SO3 given that it is a weak acid.