Write the ka expression for an aqueous solution of nitrous acid:

1 answer:

lina2011 [118]4 years ago

4 0

Balanced chemical reaction (dissociation): HNO₂(aq) ⇄ H⁺(aq) + NO₂⁻(aq).
Answer is: Ka = [NO₂⁻]·[H⁺] / [HNO₂].
Ka - acid dissociation constant.
[HNO₂] - equilibrium concentration of nitrous acid.
[NO₂⁻] - equilibrium concentration of nitrite anions.
[H⁺] - equilibrium concentration of hydrogen cations.

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