Question 11 Observe the titration curve below and choose the CORRECT statement. 124
Question 11 Observe the titration curve below and choose the CORRECT statement. 124
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
Related questions
Question
![**Question 11**
Observe the titration curve below and choose the **CORRECT** statement.
[**Graph Explanation**:**
- The graph represents a titration curve plotting pH against equivalents of OH⁻.
- There are two distinct pKa points labeled as pK₁ and pK₂.
- Point A is on the curve near the initial pH level, indicating the start.
- Point B is at the higher inflection, suggesting the endpoint for the second acidic group.
- Point C is at the lower inflection, indicating the endpoint for the first acidic group.
**Options:**
- ○ Two of these are correct
- ○ At point A, both acidic groups are protonated
- ○ At point A, both acidic groups are deprotonated
- ○ C is the end point of titration for the most acidic group
- ○ B is the end point of titration for the most acidic group
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Transcribed Image Text:**Question 11**
Observe the titration curve below and choose the **CORRECT** statement.
[**Graph Explanation**:**
- The graph represents a titration curve plotting pH against equivalents of OH⁻.
- There are two distinct pKa points labeled as pK₁ and pK₂.
- Point A is on the curve near the initial pH level, indicating the start.
- Point B is at the higher inflection, suggesting the endpoint for the second acidic group.
- Point C is at the lower inflection, indicating the endpoint for the first acidic group.
**Options:**
- ○ Two of these are correct
- ○ At point A, both acidic groups are protonated
- ○ At point A, both acidic groups are deprotonated
- ○ C is the end point of titration for the most acidic group
- ○ B is the end point of titration for the most acidic group
[Previous]
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