Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
thumb_up100%
Please help
```
H₂N
|
CO
|
HO
|
C=O
|
NH₂
```
2. **Structure b:**
```
H₂N
|
CO
|
O
|
C=O
|
NH₂
```
3. **Structure c:**
```
H₂N
|
CO
|
O
|
C=O
|
HO
```
4. **Structure d:**
```
H₂N
|
CO
|
O
|
C=O
|
NH₂
```
**Options to Choose:**
- O Structure a
- O Structure b
- O Structure c
- O Structure d
---
At a pH of 10, the predominant species of asparagine will have both ionizable groups (amino and carboxyl groups) in their deprotonated or charged forms. Given that the carboxyl group deprotonates around pKa 2.02 and the amino group deprotonates around pKa 8.80, at a pH of 10, both groups will lose a proton. Hence, the correct structure that predominates at pH 10 should be deprotonated at the carboxyl group and amino group.
**Answer: Structure b**
Explanation: At pH 10, both the carboxyl group (-COOH) and the amino group (-NH₄⁺) will be deprotonated. This results in the carboxyl group becoming -COO⁻ and the amino group remaining as -NH₂, matching the structure b](https://content.bartleby.com/qna-images/question/c3b47743-a772-4568-83ad-b77b4d2c37c7/b2cda633-4313-4e02-b814-4d9b1821a6de/9k4vztq_processed.jpeg)
Transcribed Image Text:**Title: Predominant Structure of Asparagine at pH 10**
**Content:**
---
**The pKa values of the amino acid asparagine are 2.02 and 8.80. Select the asparagine structure that predominates at pH 10.**
**Structures:**
1. **Structure a:**
```
H₂N
|
CO
|
HO
|
C=O
|
NH₂
```
2. **Structure b:**
```
H₂N
|
CO
|
O
|
C=O
|
NH₂
```
3. **Structure c:**
```
H₂N
|
CO
|
O
|
C=O
|
HO
```
4. **Structure d:**
```
H₂N
|
CO
|
O
|
C=O
|
NH₂
```
**Options to Choose:**
- O Structure a
- O Structure b
- O Structure c
- O Structure d
---
At a pH of 10, the predominant species of asparagine will have both ionizable groups (amino and carboxyl groups) in their deprotonated or charged forms. Given that the carboxyl group deprotonates around pKa 2.02 and the amino group deprotonates around pKa 8.80, at a pH of 10, both groups will lose a proton. Hence, the correct structure that predominates at pH 10 should be deprotonated at the carboxyl group and amino group.
**Answer: Structure b**
Explanation: At pH 10, both the carboxyl group (-COOH) and the amino group (-NH₄⁺) will be deprotonated. This results in the carboxyl group becoming -COO⁻ and the amino group remaining as -NH₂, matching the structure b
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Chapter4-Three Major Classes of Chemical Reactions i Saved 11 Enter your answer in the provided box. A sample of concentrated nitric acid has a density of 1.41 g/mL and contains 70.0%HNO, by mass. What mass of HNO3 is present per liter of solution? Mc Graw Hill Type here to searcharrow_forwardCan you please help with this problem? Have absolutely no clue where to start. Calculate the pCl in a solution that is 1.4 x 10-4 M HgCl2 and 1.60 x 10-3 M in KClarrow_forwardShould be 3 answers in total. Will thumbs up! Next the student conducts two different runs: In RUN 1, 10.0 mL of 5.00 M NAOH is combined with 10.0 mL of 0.010 M CO and 80.0 mL of wate In RUN 2, 20.0 mL of 5.00 M NAOH is combined with 10.0 mL of 0.010 M CO and 70.0 mL of wate The following plots were obtained for each of the runs: [crystal orange] vs time (RUN 1) In[crystal orange] vs time (RUN 1) 0.0012 0.001 -2 y--0.4463x- 7.3334 y =-0.0002x + 0.0007 R- 0.6565 R = 0.893 0.0008 4 0.0006 -6 0.0004 -8 0.0002 0.0002 -12 time (hr) time (hr) 1/[crystal orange] vs time (RUN 1) 1/[crystal orange] vs time (RUN 2) 12000 25000 10000 20000 8000 15000 6000 y = 2000x + 1000 R =1 10000 y 4000x + 1000 R =1 4000 2000 5000 time (hr) time (hr) Figure 4. Kinetic traces for the reaction between crystal orange and sodium hydroxide. What is the order with respect to CO? | Select ] What is the order with respect to NaOH? | Select ] What is the value of the averaged rate constant for the reaction above? Give…arrow_forward
- Materials Needed solid I2 solid CUSO4-5H20 food dye solid (NH4)2SO4 heavy metals waste container halogenated waste container non-halogenated waste container semi-micro test tubes and rack regular test tubes and rack squash pipettes acetone cyclohexane propan-2-ol Method Part A: Solubility of ionic and molecular solids 1. Place a small amount (about the size of 1 grain of rice, see picture) of copper sulfate into each of three DRY semi-micro test tubes. Add 20 drops of water to the first test tube and gently flick the test tube with your finger to ensure mixing. 2. Repeat step 1 using acetone in place of water as the solvent in the second test tube. 3. Repeat step 2 replacing acetone with cyclohexane in the third test tube. Hold the test tubes against a white background to compare the solubility of copper sulfate in the three solvents and record your results. Discard these mixtures into the heavy metals waste container in the fume cupboard. Once these test tubes have been emptied you…arrow_forwardHello! Could you please answer this with one long dimentional analysis like I am supposed to do it? Thank you!arrow_forward16. A physician orders that a child should be given potassium chloride per kilogram (mEq/kg). The child weighs 675 oz. 1.6 milliequivalents NDC 00000-0000-00 POTASSIUM CHLORIDE For Injection Concentrate, USP 40 mEq (2 mEq/mL)) 20 mL Single Dose Vial Rx only DCL DELMAR Cengage Learning For Educational Purposes Only a. What dosage in mEq should the child receive? (Round off to near- est whole number.) b. If the medication is diluted correctly, how many mL should be injected? 00-0000-00000 Compiled loom Temperat S225C 77 USP Cengage Learning 2013 Exp. Date Lot.arrow_forward
- What volume, in ml, of 0.5000M HCN can be made from 16.28ml of 14.37M HCN? A Moving to another question will save this response. chm1045l quiz6 2.pdf UI Online - Doc_....pdf AcroRdrDC_21 MAR 10 3 átv W MacBook Airarrow_forwardPlease check my answerarrow_forwardplease help and answer this for mearrow_forward
- 25.0mL to Larrow_forwardPlease fill in blanks as shown on problem!!arrow_forwardMatti is given two bottles of copper (II) sulfate solutions in her senior high chemistry lab. She is told that one bottle contains a saturated solution and the other one contains an unsaturated solution. The solutions are the exact same color and have no particles in the bottles. Describe what Matti can do to distinguish between the two solutions. A- 米 U X2 x? #3 X Next page age You are logged in as Kaylee Krys (Log out) VLL Chemistry CP 2021-2022 (Fickett). Get the mobile app MacBook Air F8 O00 F4 F5 F6 F2 F3 & * @ # $ 7 9 2 3 4 Q W E R T Y А S D F G H M Y Barrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning 
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY