Nitrous acid dissociates in water according to the following equation: HNO2(aq) H+(aq) + NO2–(aq) and at 25 °C
the acid dissociation constant, Ka = 4.3 × 10–4 mol dm–3 Which of the following statements about the equilibrium acid dissociation for nitrous acid are true? This is a strong acid. The equilibrium lies far over to the right-hand side. The acid is completely dissociated in solution. This is a weak acid. This is a concentrated acid. The equilibrium lies far over to the left-hand side.
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