When plotting a graph that measures pH levels of a weak acid at increasing volume of sodium hydroxide, the pH at equilibrium should be at pH 7 True False
When plotting a graph that measures pH levels of a weak acid at increasing volume of sodium hydroxide, the pH at equilibrium should be at pH 7 True False
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Question:**
When plotting a graph that measures pH levels of a weak acid at increasing volume of sodium hydroxide, the pH at equilibrium should be at pH 7.
- ○ True
- ○ False
**Explanation:**
This question assesses understanding of acid-base titration curves. When a weak acid is titrated with a strong base like sodium hydroxide, the equivalence point (equilibrium) will have a pH greater than 7. This is because the salt formed (from the conjugate base of the weak acid) will hydrolyze in water, resulting in a basic solution. Therefore, the statement is false.
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We have to determine the pH at equilibrium when plotting a graph that measures pH levels of a weak acid at increasing volume of sodium hydroxide.
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