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33 Cards in this Set
- Front
- Back
acid
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a substance that produces hydrogen ions (H+) in solution; proton donor
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base
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a substance that produces hydroxide ions (OH-) in solution; proton acceptor
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Arrhenius concept of acids & bases
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acids produce H+ ions in solution; bases produce OH- ions in solution
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Bronsted-Lowry model
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an acid is a proton donor; a base is a proton acceptor
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conjugate acid
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the substance formed when a proton is added to a base
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conjugate base
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the remaining substance when a proton is lost from an acid
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conjugate acid-base pair
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two substances related to each other by the donating and accepting of a single proton
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hydronium ion
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H20+
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strong acid
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an acid that completely dissociates to produce H+ ions in solution
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weak acid
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an acid that dissociates to a slight extent in aqueous solution
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diprotic acid
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an acid that can furnish two protons
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oxyacid
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an acid in which the acidic proton is attached to an oxygen atom
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organic acid
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an acid with a carbon atom backbone and a carboxyl group
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amphoteric substance
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a substance that can behave either as an acid or as a base
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ionization of water
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the transfer from one water molecule to another to produce a hydroxide ion and a hydronium ion
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indicator (acid-base)
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a chemical that changes color depending on the pH of a solution
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indicator paper
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a strip of paper coated with a combination of acid-base indicators
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pH meter
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a device used to measure the pH of a solution
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neutralization reaction
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an acid-base reaction
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titration
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a technique in which a solution of known concentration is used to determine the concentration of another solution
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standard solution
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a solution in which the concentration is accurately known
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buret
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a device used for the accurate measurement of the delivery of a given volume of a liquid or solution
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equivalence point (stoichiometry point)
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the point in a titration when enough titrant has been added to react exactly with the substance in solution that is being titrated
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titration curve (pH curve)
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a plot of pH of solution versus volume of titrant added to a given solution
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buffered solution
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a solution that resists a change in pH when either an acid or a base are added
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Some properties of acids:
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taste sour
corrode metals blue to red "ACID" |
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Some properties of bases:
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taste bitter, chalky
feel soapy, slippery "Basic Blue" |
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Kw
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[H+][OH-]=1.0 x 10e-14
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pH
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-log[H+]
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[H+]
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10-pH
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pOH
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-log[OH-]
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pH/pOH
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pH+pOH=14
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[OH-]
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10-pOH
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