Sometimes liquid ammonia, NH₃, is used as a solvent rather than water. Which expression defines the ammonia autoionization counterpart of K_w?

Question

Quizplus · Accepted Answer

The autoionization of liquid ammonia can be represented as: 2NH3 ⇌ NH4+ + NH2- Therefore, the autoionization counterpart of KS (acid dissociation constant) for liquid ammonia would be the product of the equilibrium concentrations of NH4+ and NH2- ions divided by the concentration of NH3. The expression that represents this equilibrium is: [NH4+][NH2-]/[NH3] This is equivalent to the expression given in choice C, which is the product of the equilibrium concentrations of NH₂^- and NH₄⁺ ions (the counterpart of NH4+ and NH2-, respectively), divided by the concentration of NH₃ (ammonia).

Sometimes Liquid Ammonia, NH3, Is Used as a Solvent Rather

Sometimes Liquid Ammonia, NH₃, Is Used as a Solvent Rather