Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 2.8, Problem 12P
Interpretation Introduction
Interpretation:
The amino acid phenyl alanine has pKa=1.83 and tryptophane has pKa=2.83. The stronger acid among them is to be identified.
Concept introduction:
Acid strengths are normally expressed using pKa values which is defined as negative commom logarithm of the Ka values.
pKa=-logKa
A stronger acid has a smaller pKa and a weaker acid has a larger pKa value.
To determine:
The strong acid among phenyl alanine with pKa=1.83 and tryptophane with pKa=2.83.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
2. Name the following hydrocarbons. (9 marks)
a)
HHHHHHHH
H-C-C-
H-O-S
b)
HCEC-CH3
H H
H H
H
d)
c)
H
C=C-
H
H
H
e)
CH3
CH3 CH2CH=CH-CH=CHCH3
HHHH
H-C-C-C-C-H
H
HH H
f)
large
CH2CH3
pola
H3C
section
lovels
tower,
able
ocart
firs g)
Tower
H3C-CH2
then in
H3C-CH-CH-CH3
enblbano bne noitsidab
Copyright © 2008. Durham Continuing Education
CH3
Name the molecules & Identify any chiral center
CH3CH2CH2CHCH₂CH₂CH₂CH₂
OH
CH₂CHCH2CH3
Br
CH3
CH3CHCH2CHCH2CH3
CH3
Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).
Chapter 2 Solutions
Organic Chemistry
Ch. 2.1 - Prob. 1PCh. 2.1 - Prob. 2PCh. 2.1 - Use the electronegativity values shown in Figure...Ch. 2.1 - Look at the following electrostatic potential map...Ch. 2.2 - Ethylene glycol, HOCH2CH2OH, may look nonpolar...Ch. 2.2 - Make three-dimensional drawings of the following...Ch. 2.3 - Calculate formal charges for the nonhydrogen atoms...Ch. 2.3 - Organic phosphate groups occur commonly in...Ch. 2.6 - Which of the following pairs of structures...Ch. 2.6 - Draw the indicated number of resonance forms for...
Ch. 2.7 - Nitric acid (HNO3) reacts with ammonia (NH3) to...Ch. 2.8 - Prob. 12PCh. 2.8 - Amide ion, H2N-, is a much stronger base than...Ch. 2.9 - Prob. 14PCh. 2.9 - Prob. 15PCh. 2.9 - Prob. 16PCh. 2.11 - Using curved arrows, show how the species in part...Ch. 2.11 - Prob. 18PCh. 2.12 - Of the two vitamins A and C, one is hydrophilic...Ch. 2.SE - Prob. 20VCCh. 2.SE - The following model is a representation of...Ch. 2.SE - cis-l, 2-Dichloroethylene and trans-1,...Ch. 2.SE - The following molecular models are representations...Ch. 2.SE - Predict the product(s) of the acid/base reactions...Ch. 2.SE - Use curved arrows to draw the protonated form of...Ch. 2.SE - Prob. 26MPCh. 2.SE - Double bonds can also act like Lewis bases,...Ch. 2.SE - Prob. 28APCh. 2.SE - Use the electronegativity table given in Figure...Ch. 2.SE - Which of the following molecules has a dipole...Ch. 2.SE - Prob. 31APCh. 2.SE - Phosgene, C12C=O, has a smaller dipole moment than...Ch. 2.SE - Prob. 33APCh. 2.SE - Methanethiol, CH3SH, has a substantial dipole...Ch. 2.SE - Calculate the formal charges on the atoms shown in...Ch. 2.SE - Assign formal charges to the atoms in each of the...Ch. 2.SE - Which of the following pairs of structures...Ch. 2.SE - Prob. 38APCh. 2.SE - 1, 3-Cyclobutadiene is a rectangular molecule with...Ch. 2.SE - Alcohols can act either as weak acids or as weak...Ch. 2.SE - The O-H hydrogen in acetic acid is more acidic...Ch. 2.SE - Draw electron-dot structures for the following...Ch. 2.SE - Write the products of the following acid-base...Ch. 2.SE - Rank the following substances in order of...Ch. 2.SE - Which, if any, of the substances in Problem 2-44...Ch. 2.SE - The ammonium ion (NH4+, pKa = 9.25) has a lower...Ch. 2.SE - Prob. 47APCh. 2.SE - Prob. 48APCh. 2.SE - Calculate Ka values from the following pka’s:...Ch. 2.SE - Calculate pKa values from the following Ka’s:...Ch. 2.SE - What is the pH of a 0.050 M solution of formic...Ch. 2.SE - Prob. 52APCh. 2.SE - Maleic acid has a dipole moment, but the closely...Ch. 2.SE - Assume that you have two unlabeled bottles, one of...Ch. 2.SE - Identify the acids and bases in the following...Ch. 2.SE - Which of the following pairs represent resonance...Ch. 2.SE - Draw as many resonance structures as you can for...Ch. 2.SE - Carbocations, which contain a trivalent,...Ch. 2.SE - We’ll see in the next chapter that organic...Ch. 2.SE - The azide functional group, which occurs in...Ch. 2.SE - Phenol, C6H5OH, is a stronger acid than methanol,...Ch. 2.SE - Thiamin diphosphate (TPP), a derivative of vitamin...Ch. 2.SE - Determine if each compound or ion below has a...Ch. 2.SE - Prob. 64APCh. 2.SE - Prob. 65APCh. 2.SE - Draw the conjugate base for each compound below...Ch. 2.SE - 1, 1, 1-Trichloroethanol is an acid more than 1000...
Knowledge Booster
Similar questions
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).arrow_forwardWhat is the IUPAC name of the following compound? CH₂CH₂ H CI H₂CH₂C H CH₂ Selected Answer: O (35,4R)-4 chloro-3-ethylpentane Correctarrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).arrow_forward
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. I I I H Select to Add Arrows HCI, CH3CH2OHarrow_forwardCurved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and the follow the arrows to draw the intermediate and product in this reaction or mechanistic step(s).arrow_forwardCurved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow the curved arrows to draw the intermediates and product of the following reaction or mechanistic step(s).arrow_forward
- Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow the arrows to draw the intermediate and the product in this reaction or mechanistic step(s).arrow_forwardLook at the following pairs of structures carefully to identify them as representing a) completely different compounds, b) compounds that are structural isomers of each other, c) compounds that are geometric isomers of each other, d) conformers of the same compound (part of structure rotated around a single bond) or e) the same structure.arrow_forwardGiven 10.0 g of NaOH, what volume of a 0.100 M solution of H2SO4 would be required to exactly react all the NaOH?arrow_forward
- 3.50 g of Li are combined with 3.50 g of N2. What is the maximum mass of Li3N that can be produced? 6 Li + N2 ---> 2 Li3Narrow_forward3.50 g of Li are combined with 3.50 g of N2. What is the maximum mass of Li3N that can be produced? 6 Li + N2 ---> 2 Li3Narrow_forwardConcentration Trial1 Concentration of iodide solution (mA) 255.8 Concentration of thiosulfate solution (mM) 47.0 Concentration of hydrogen peroxide solution (mM) 110.1 Temperature of iodide solution ('C) 25.0 Volume of iodide solution (1) used (mL) 10.0 Volume of thiosulfate solution (5:03) used (mL) Volume of DI water used (mL) Volume of hydrogen peroxide solution (H₂O₂) used (mL) 1.0 2.5 7.5 Time (s) 16.9 Dark blue Observations Initial concentration of iodide in reaction (mA) Initial concentration of thiosulfate in reaction (mA) Initial concentration of hydrogen peroxide in reaction (mA) Initial Rate (mA's)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
World of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College Div
Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
World of Chemistry
Chemistry
ISBN:9780618562763
Author:Steven S. Zumdahl
Publisher:Houghton Mifflin College Div
Chemistry for Today: General, Organic, and Bioche...
Chemistry
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
General, Organic, and Biological Chemistry
Chemistry
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:Cengage Learning