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This question pertains to the pH of a weak acid/weak base salt combo. For an aq...

This question pertains to the pH of a weak acid/weak base salt combo. For an aq solution of NH4NO2, these are the combinations of reactions that are possible.

(1)          NH4+(aq) + NO21-(aq) ⇆ NH3(aq) + HNO2(aq)____________K1 = ?

(2)          NH4+(aq) + H2O(l) ⇆ H3O+(aq) + NH3(aq)_______________Ka = 5.6 x 10-10

(3)          NO21- + H2O(l)   ⇆ HNO2(aq) + OH-(aq)_________________Kb = 2.2 x 10-11

(4)          2H2O(l) ⇆ H3O+(aq) + OH-(aq)_________________________Kw =1.0 x 10-14

Write the symbolic expression for the equilibrium constants (I already did this don't worry about it).

Derive an expression for K1 in terms of Ka, Kb, and Kw; find the numerical value of K1. I'm really at a loss as to what to do. Thanks!

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Answer #1

Nut (ar) + Not (on) & Nu (2) k, = ? ist No (2) S Nu lan + LINO (ar) Nhu lan + Holl) 140+ (an) + Nuz (aq) Not + holl) No (ar)

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