A 525-mL buffer solution is 0.367 M in acetic acid (CH3COOH) and 0.367 M in sodium acetate (CH3COONa). Ka(CH3COOH)=1.8×10−5 Part A: What is the initial pH of this solution? Express your answer using two decimal places. pH = Part B: What is the pH after addition of 140 mL of 0.100 M HCl to the initial buffer solution in part A? Express your answer using two decimal places. pH = Part C: What is the pH after addition of 140 mL of 0.100 M NaOH to the initial buffer solution in part A? Express your answer using two decimal places.
A 525-mL buffer solution is 0.367 M in acetic acid (CH3COOH) and 0.367 M in sodium acetate (CH3COONa). Ka(CH3COOH)=1.8×10−5 Part A: What is the initial pH of this solution? Express your answer using two decimal places. pH = Part B: What is the pH after addition of 140 mL of 0.100 M HCl to the initial buffer solution in part A? Express your answer using two decimal places. pH = Part C: What is the pH after addition of 140 mL of 0.100 M NaOH to the initial buffer solution in part A? Express your answer using two decimal places.
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.147QP
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A 525-mL buffer solution is 0.367 M in acetic acid (CH3COOH) and 0.367 M in sodium acetate (CH3COONa).
Ka(CH3COOH)=1.8×10−5
Part A:
What is the initial pH of this solution? Express your answer using two decimal places.
pH =
Part B:
What is the pH after addition of 140 mL of 0.100 M HCl to the initial buffer solution in part A?
Express your answer using two decimal places.
pH =
Part C:
What is the pH after addition of 140 mL of 0.100 M NaOH to the initial buffer solution in part A?
Express your answer using two decimal places.
pH =
If possible, make sure its in two decimal places.
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