Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
A buffer consists of 0.20-M propanoic acid (Ka = 1.4 × 10-5) and 0.30-M sodium propanoate.
(a) Calculate the pH of this buffer.
(b) Calculate the pH after the addition of 1.0 mL of 0.10-M HCl to 0.010 L of the buffer.
(c) Calculate the pH after the addition of 3.0 mL of 1.0-M HCl to 0.010 L of the buffer.
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