For the polyprotic acid H 3 A,which of the equilibria below is INCORRECT?

The incorrect equilibrium involves the formation of hydroxide ions (OH-) from a polyprotic acid, which is not a direct dissociation process of the acid itself but rather involves water acting as an acid, which contradicts the typical behavior of polyprotic acids dissociating in water.

For the polyprotic acid H 3 A,which of the equilibria below is INCORRECT?

The incorrect equilibrium involves the formation of hydroxide ions (OH-) from a polyprotic acid, which is not a direct dissociation process of the acid itself but rather involves water acting as an acid, which contradicts the typical behavior of polyprotic acids dissociating in water.

Solved

For the Polyprotic Acid H₃A,which of the Equilibria Below Is

Question 12

Multiple Choice

For the polyprotic acid H₃A,which of the equilibria below is INCORRECT?

A) A³⁻ ⇋ HA²⁻ + OH⁻ K_b3 = K_w/K_a3
B) H₂A⁻ ⇋ HA²⁻ + H⁺ K_a2 = K₂
C) HA²⁻ ⇋ A³⁻ + H⁺ K_a3 = K₃
D) H₃A ⇋ H₂A⁻ + H⁺ K_a1 = K₁
E) HA²⁻ ⇋ H₂A⁻ + OH⁻ K_b2 = K_w/K_a2