MCAT Acids/Bases
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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What is the relation of K(sp), solubility constant to soulubility? | K(sp) is directly related to solubility; therefore the larger the K(sp) the more soluble the product
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What is the common ion effect? | Another form of Le Chatelier's Principle, the the decrease in the solubility of a salt occurs because another salt is added that contains one of its ions.
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What is the relatonship bw autoionization of water K(w) and temp | it increases when temp increases
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polyprotic | can accept or donate more than one H+
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high [H] means... | low pH and the solution is acidic
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pH + pOH = | 14
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pH = | -log[H] or -log[H3O+]
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pOH = | -log[OH]
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What is the relation bw K(a) and pKa? | The larger the K(a) value the smaller the pKa value and therefore the stronger the acid
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What is the Henderson-Hasselbalch equation? | pH = pKa + log {[conjugate base]/[weak acid]}
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what happens at a half-equivalence point? | the pKa equals the pH
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K(w) | = [H3O+][OH-]
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Titration equation | pH = [vol acid]/ [vol base]
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pKa + pKb = | 14
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