Lecture_Notes_092309b

Lecture_Notes_092309b - Lecture Note

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Bases y Strong Bases – soluble hydroxide salts, such as NaOH, Ca(OH) 2 , KOH, etc. y Weak Bases – molecules or ions that accept an H + ion from water leaving behind an OH - ion.
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Base Dissociation Constant y Much like K a . Can relate K a to K b .
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If the base is C 3 H 7 NH 2 what is the conjugate acid? C3H7NH- C3H7N H 3+ OH- H3 O+ M o re i n fo rm a ti n s . .. 6% 87% 2% 6% 0% 1. C 3 H 7 NH - 2. C 3 H 7 NH 3 + 3. OH - 4. H 3 O + 5. More information is required
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If the K b for a base is 5.1 x 10 -4 , what is value of K a for its conjugate acid? 1 9 6 .00 x 10- 4 1. x 0 - Need to know the iden. .. 2% 0% 97% 2% 1. 1961 2. 1.00 x 10 -14 3. 1.96 x 10 -11 4. Need to know the identity of the base
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Bases y Morphine (C 17 H 19 NO 3 ), a narcotic used in painkillers, is a weak organic base. If the pH of a 7.0 x 10 -4 M solution of morphine is 9.5, what is the value of K b ?
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Bases y Calculate the pH of a 0.20 M C 2 H 5 NH 2 solution (K b = 5.6 x 10 -4 ).
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Polyprotic Acids y Always lose only one acidic proton at a time.
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This note was uploaded on 10/14/2009 for the course CHEM 105BLG at USC.

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Lecture_Notes_092309b - Lecture Note

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