## Chemistry: The Molecular Science (5th Edition)

$HX(aq) + H_2O(l) \lt -- \gt X^-(aq) + H_3O^+(aq)$ + $X^-(aq) + H_2O(l) \lt -- \gt HX(aq) + OH^-(aq)$ = $HX(aq) + X^-(aq) + 2H_2O(l) \lt -- \gt X^-(aq) + HX(aq) + H_3O^+(aq) + OH^-(aq)$ - Eliminating the repeated ones: $2H_2O(l) \lt -- \gt H_3O^+(aq) + OH^-(aq)$
1. Choose something to represent a generic acid: - Like $HX$. It needs a hydrogen in its formula. 2. Write its ionization equation: $HX(aq) + H_2O(l) \lt -- \gt X^-(aq) + H_3O^+(aq)$ 3. Identify the conjugate base, and write its ionization equation: $X^-(aq) + H_2O(l) \lt -- \gt HX(aq) + OH^-(aq)$ 4.Now, sum these two equations and eliminate the repeated compounds: $HX(aq) + X^-(aq) + 2H_2O(l) \lt -- \gt X^-(aq) + HX(aq) + H_3O^+(aq) + OH^-(aq)$ - Eliminating the repeated ones: $2H_2O(l) \lt -- \gt H_3O^+(aq) + OH^-(aq)$