Answer to Question #203005 in General Chemistry for Mickayla

Question

HA is a weak acid. Which equilibrium corresponds to the equilibrium constant K_b for A^-?

1. HA (aq) + H₂O (l) ↔ H₂A⁺ (aq) + OH^- (aq)
2. A^- (aq) + H₃O⁺ (aq) ↔ HA (aq) + H₂O (l)
3. HA (aq) + OH^- (aq) ↔ H₂O (l) + H⁺ (aq)
4. A^- (aq) + H₂O (l) ↔ HA (aq) + OH^- (aq)
5. A^- (aq) + OH^- (aq) ↔ HOA^2- (aq)

Answer 1

A- (aq) + H2O (l) ↔ HA (aq) + OH- (aq)