Flashcards from chapter 5 of Berkley Review's chemistry book (2010)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Neutralization | Mixing of equal mole portions of an acid with a base regardless of their concentration or strength
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| Equivalence point | When you've added same number of moles as you had of the original acid/base
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| Buffer | Roughly equal mole mixture of a weak acid and its weak conjugate base in aq solution. Resists change to pH
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| Buffer range | 10:1 to 1:10 ratios (pKa +/- 1)
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| Physiological pH | 7.4
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| Half equivalence point | pH = pKa
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| Respiratory acidosis | Retention of CO2 (blood pH goes down)
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| Respiratory alkalosis | Loss of CO2 (blood pH goes up)
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| Metabolic acidosis | Loss of HCO3- so blood pH goes down
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| Metaboli alkalosis | Loss of H3O+ so blood pH goes up
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| Sigmoidal | shape of a titration curve
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| Important polyprotic acids | Carbonic acid (H2CO3), phosphoric acid (H3PO4), and sulfuric acid (H2SO4)
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| Litmus paper | Blue turns red under acidic conditions
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| Choosing indicator | * Want pH = pKa +/-1
* approximation: pKa = (pKa_acid + pH_titrantbase)/2
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| pH at first equivalence point in diprotic acid | (pka1 + pka2)/2
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| Formula weight | Find molar mass and divide by number of equivalents
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Created by:
kcurtiss
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