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8 Cards in this Set
- Front
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polyvalent
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each mole of the acid or base liberates more than one acid or base equivalent
e.g H2SO4 produces 2 moles of H+ and therefore 2 acid equivalents |
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equivalent weight
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refers to units H released per molecule
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amphoteric/amphiprotic
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can act either as an acid or a base, depending on its chemical environment
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titration
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a procedure used to determine the molarity of an acid or base by reacting a known volume of a solution of unknown concentration with a known volume of a solution of known concentration.
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equivalence point
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when H+ = OH-
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the equation to calculate end point (titration)
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VaNa=VbNb
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Buffer
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a mixture of a weak acid and its salt or of a weak base and its salt. buffer solution have the useful property of resisting changes in pH when small amounts of acid or base added
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Henderson-Hasselbach equation
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pH=pKa+log[conj base/weak acid]
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