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IMG_0005_NEW_0009 - HrO(D H:O(aq n(aq Thus lH3o-l[A...

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TODAY'S LECTURE "Acids and Bases" . The Nature of Acids and Bases . Acid Strength . Bases . Water as an Acid or Base The Nature of Acids and Bases . Arrhenius concept: Acids produce hydrogen ions (H') I Bases produce hydroxide ions (oHJf t *tto . Brsnsted-Lowryconcept: oroton acceotor. . Acids in Aqueous Solutions Water acts as a base to form a hydronium ion HA(aq) + I{2O(D : HrO*(, q) + a*(aq) acid base conjugate conjugate acid base . Equilibrium: Competition for the proton between the two bases Acids in Water General acid base equilibrium in water HA(aq)+
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Unformatted text preview: HrO(D - H:O*(aq) + n*(aq) . Thus, lH3o-l[A-] lI{AllHrOl <-activity: I (pure liquid) v [H3O.][A-] " [FtA] Where Ku: acid dissociation constant Hydrated proton : HtO*(aq) or H* (aq) = Represent with simple dissociation: llA(aq) --- H*(aq) + a*(aq) Acid Strength StrongAcids : Dissociate Completely HA(aq): H*(oq)+A-(aq) Berore dissociation ffi:i,:ffi'#'"' HA H+ A-LW Weak Acids: Dissociate Slightly HA(aq) z - H*(aq) + A-(aq) v [H.][A-l "": u1,il After dissociation, at equilibnium HA L Befme dissociation HA L...
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