To a 500 mL of buffer solution consisting of 0.25 M Acetic acid (HAc) and 0.50M Sodium acetate (NaAc); 0.05 mol of NaOH is added. (KHAC= 1.8x10^-5) Accordingly, which of the following statements is true? I: the pH of the solution rises, there is an increase in pH by 0.12 units. II. the pH of the solution drops, there is a decrease in pH of 0.12 units. II. The pH of the initial buffer is 4.74 IV. In the last case, the pH of the buffer is pH= 5.17. V. There is no significant change in pH.
To a 500 mL of buffer solution consisting of 0.25 M Acetic acid (HAc) and 0.50M Sodium acetate (NaAc); 0.05 mol of NaOH is added. (KHAC= 1.8x10^-5) Accordingly, which of the following statements is true? I: the pH of the solution rises, there is an increase in pH by 0.12 units. II. the pH of the solution drops, there is a decrease in pH of 0.12 units. II. The pH of the initial buffer is 4.74 IV. In the last case, the pH of the buffer is pH= 5.17. V. There is no significant change in pH.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 14QAP: A buffer solution is prepared by adding 5.50 g of ammonium chloride and 0.0188 mol of ammonia to...
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Transcribed Image Text:To a 500 mL of buffer solution consisting of 0.25 M Acetic acid (HAC) and 0.50M Sodium acetate (NaAc); 0.05 mol of NaOH
is added. (KHAC= 1.8x10^-5)
Accordingly, which of the following statements is true?
I: the pH of the solution rises, there is an increase in pH by 0.12 units.
II. the pH of the solution drops, there is a decrease in pH of 0.12 units.
III. The pH of the initial buffer is 4.74
IV. In the last case, the pH of the buffer is pH= 5.17.
V. There is no significant change in pH.
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