• $HA(A)+H_{2}O(B)\rightleftharpoons H_3{O}^{+}(CA)+A^{-}(CB)$
  • $HA$ is generic weak acid
  • First $H$ in $HA$ is ionizable (acidic) proton
• $N{H}_3(B)+HF(A)\rightleftharpoons N{H}_4^{+}(CA)+F^{-}(CB)$
• $N{H}_4^{+}(A)+H_{2}O(B)\rightleftharpoons N{H}_3(CB)+H_3{O}^{-}(CA)$
• $P{O}_4^{3-}(B)+H{C}_2{H}_3{O}_2(A)\rightleftharpoons HP{O}_4^{2-}(CA)+C_2{H}_3{O}_2^{-}(CB)$
  • First $H$ in $H{C}_2{H}_3{O}_2$ is ionizable proton
• $C_2{O}_4^{2-}(B)+H_{2}O(A)\rightleftharpoons H{C}_2{O}_4^{-}(CA)+OH(CB)$
• $H{C}_2{H}_3{O}_2(A)+H_{2}O(B)\rightleftharpoons H_3{O}^{+}(CA)+C_2{H}_3{O}_2^{-}(CB)$