071508 - Bases Strong Bases Weak Bases Bases Morphine...

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Bases y Strong Bases – y Weak Bases –
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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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Polyprotic Acids
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Polyprotic Acids y Oxalic acid (H 2 C 2 O 4 ) is a diprotic acid that occurs in plants such as rubarb and spinach. Calculate the pH and the concentrations of C 2 O 4 2- ions in 0.20 M H 2 C 2 O 4 (K a1 = 5.9 x 10 -2 , K a2 = 6.4 x 10 -5 ).
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Polyprotic Acids
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Polyprotic Acids y In thiophosphoric acid (H 3 PO 3 S), an S atom substitutes for one of the O atoms in the H 3 PO 4 molecule. The K a values for this acid are: K a1 = 1.6 x 10 -2 , K a2 = 3.7 x 10 -6 , K a3 = 8.3 x 10 -11 . For a solution that is 0.50 M H 3 PO 3 S, determine the pH, [H 3 PO 3 S], [H 2 PO 3 S - ], [HPO 3 S 2- ], and [PO 3 S 3- ]
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Polyprotic Acids
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Acid-Base Properties of Salts y Salts that produce neutral solutions: y Salts that produce basic solutions: y Salts that produce acidic solutions:
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Acid-Base Properties of Salts
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071508 - Bases Strong Bases Weak Bases Bases Morphine...

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