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Arrhenius Acids and Bases. Arrhenius acid = acid that produces H+ in aqueous solutions Arrhenius base= base that produces OH- in aqueous solutions.

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Presentation on theme: "Arrhenius Acids and Bases. Arrhenius acid = acid that produces H+ in aqueous solutions Arrhenius base= base that produces OH- in aqueous solutions."— Presentation transcript:

1 Arrhenius Acids and Bases

2 Arrhenius acid = acid that produces H+ in aqueous solutions Arrhenius base= base that produces OH- in aqueous solutions

3 Ionic hydroxides = bases that dissociate in solution, releasing OH- ions Other bases react with water and remove an H+ and leave OH-

4 Aqueous Solutions of Acids Aqueous acid = a water solution of an Arrhenius acid Water molecules attract H+ ions of acid molecules H+ ion in aqueous solution: H 3 0+ (hydronium)

5 Strength of Acids Strong acid = an acid that ionizes completely in an aqueous solution -strong electrolytes examples: HClO 4, HCl, HNO 3

6 Weak acid = an acid that releases only a few H+ ions in an aqueous solution example: HCN

7 Acid Strength (cont’d) depends on: –the polarity of the bond between H+ – the other element and the bond energy of that bond Strength increases with polarity Strength increases as bond energy decreases

8 Aqueous Solutions of Bases Made up of mostly metal cations and OH- Dissociate when dissolved in water A base that completely dissociates in water to yield OH- is strongly basic

9 Strength of Bases Depends on how much the base dissociates Strong bases are strong electrolytes Weak base= a base with low concentration of OH-


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