Acid/Base Definitions

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5 Terms

1
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Arrheinus

acids: dissociate in water + give H30+

bases: dissociate in water + give OH-

pH of solns can be found (<7 are acidic & >7 are basic)

2
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Bronstead-Lowry

acids: donate protons (H+)

bases: accept protons (H+)

  • strong acids make weaker conjugate bases

  • strong bases make weaker conjugate acids

  • pKa=-logKa

    • more negative pKa = more acidic

3
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Lewis

acids: accept a lone pair

bases: donate a lone pair

  • base —> conjugate acid

  • acid —> conjugate base

4
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how to make a conjugate acid

add H+ to base

5
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how to make a conjugate base

take H+ from acid

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