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1. What molar concentration of acetate ion (CH3COO−)would you need to prepare 1.0 L of an acetic acid/acetate ion buffe
Posted: Tue Jul 12, 2022 1:17 pm
by answerhappygod
- 1 What Molar Concentration Of Acetate Ion Ch3 Coo Would You Need To Prepare 1 0 L Of An Acetic Acid Acetate Ion Buffe 1 (100.26 KiB) Viewed 28 times
1. What molar concentration of acetate ion (CH3COO−)would you need to prepare 1.0 L of an acetic acid/acetate ion buffer solution with a pH of 5.12 if the acetic acid concentration is 0.15M ? (Ka of CH3COOH=1.8×10−5) 2. 10 mL of 1.0×10−4M strong acid is added to 100 mL of each of the following solutions: (1) a solution containing 1.8×10−5M hydrochloric acid and (2) a solution containing 1.0M acetic acid (Ka=∣1.8×10−5) and 1.0M acetate ion. After the strong acid is added, we expect that the a. pH of both solutions would remain unchanged. b. change in pH would be very large in both solutions. c. change in pH would be the same in both solutions. d. change in pH would be larger in the solution containing acetic acid and sodium acetate. e. change in pH would be larger in the HCl solution. 3. Equal concentrations of a weak acid and its conjugate base are used to prepare a buffer solution with pH=2. Which of the following acids (and its conjugate base) would be the best choice to prepare the buffer solution?