Consider the ionization of nitrous acid at 25 °C:   HNO2(aq) + H2O(l)H3O+(aq) + NO2–(aq)              ΔG° = 19.1 kJ·mol–1 What is the value of K for this equilibrium?     2.2     2.0×10–7     2.2×103     4.5×10–4

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Consider the ionization of nitrous acid at 25 °C:

  HNO2(aq) + H2O(l)H3O+(aq) + NO2(aq)            

 ΔG° = 19.1 kJ·mol–1

What is the value of K for this equilibrium?

   

2.2

   

2.0×10–7

   

2.2×103

   

4.5×10–4

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