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Unformatted text preview: Acid: any species that can donate a proton (H+ ion) proton donor Base: any species that can accept a proton (H+ ion) proton acceptor Practice: Classify the following as acids or bases. CO 3 2-H 3 N CH 3 COOH NO 3-PH 3 BF 3 BF 3 cannot be defined using the Bronsted-Lowry theory new definition needed Lewis Definition Acid: electron pair acceptor Base: electron pair donor Practice: Classify the following as acids or bases: Al 2 Cl 6 + 2Cl 2AlCl 4 AlF 3 + 3F AlF 6 3 2F + SiF 4 SiF 6 2 Conclusions Acids and bases can be defined 3 ways: Arrhenius (middle school definitions) Acids release H+ ions Bases release OH- ions Bronsted-Lowry Acids proton donors Bases proton acceptors Lewis Acids electron pair acceptors Bases electron pair donors...
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- Spring '11