
Student Value Bundle: Organic Chemistry, + OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card (NEW!!)
9th Edition
ISBN: 9781305922198
Author: John E. McMurry
Publisher: CENGAGE L
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
Draw and name molecules that meet the following descriptions; [4]
a) An organic molecule containing 2 sp2 hybridised carbon and 1 sp-hybridised carbon atom.
b) A cycloalkene, C7H12, with a tetrasubstituted double bond.
Also answer question 2 from the image
H
14. Draw the line angle form of the following molecule make sure you use the proper
notation to indicate spatial positioning of atoms.
F
F
H
15. Convert the following condensed form to line angle form:
(CH3)3CCH2COCH2CON(CH2CH3)2
In a reaction between two reactants A and B, the half-life is the same for both only if(A) the stoichiometry A:B is 1:1.(B) the stoichiometry A:B is 1:2 or 2:1.
Chapter 2 Solutions
Student Value Bundle: Organic Chemistry, + OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card (NEW!!)
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
- In a reaction between two reactants A and B, the half-life is the same for both.(1) Only if the stoichiometry A:B is 1:1.(2) If the initial quantities of A and B are in their stoichiometric ratios.arrow_forwardThere are 48 pairs of students in the following table. Each pair has quantitatively determined the mass of taurine in a 250 mL can of the popular energy drink marketed as “Munster” using High Performance Liquid Chromatography (HPLC). The class results are presented below: QUESTION: Calculate the measurement of uncertainty and provide the data in a spreadsheet table. Mass of Taurine (mg) Mass of Taurine (mg) (Table continued) 152.01 152.23 151.87 151.45 154.11 152.64 152.98 153.24 152.88 151.45 153.49 152.48 150.68 152.33 151.52 153.63 152.48 151.68 153.17 153.40 153.77 153.67 152.34 153.16 152.57 153.02 152.86 151.50 151.23 152.57 152.72 151.54 146.47 152.38 152.44 152.54 152.53 152.54 151.32 152.87 151.24 153.26 152.02 152.90 152.87 151.49 152.46 152.58arrow_forward1. Predict the organic product(s) of the following reactions. Assume excess of reagents unless otherwise noted. a) &l BH3 •THF b) 1) NaOH 2) H3O+ solve d) ala 1) EtMgBr 2) H3O+ e) H2N سكر CuLi NH2 1) SOCI2 2) EtMgBr 3) H3O+ NC H3O+ Δarrow_forward
- There are 48 pairs of students in the following table. Each pair has quantitatively determined the mass of taurine in a 250 mL can of the popular energy drink marketed as “Munster” using High Performance Liquid Chromatography (HPLC). The class results are presented below: QUESTION: Summarise and report these results including an indication of measurement uncertainty. In both calculation samples calculate if an outlier is present, max value, number of samples, mean, standard deviation, g (suspect), g (critical) and t (critical). Mass of Taurine (mg) Mass of Taurine (mg) (Table continued) 152.01 152.23 151.87 151.45 154.11 152.64 152.98 153.24 152.88 151.45 153.49 152.48 150.68 152.33 151.52 153.63 152.48 151.68 153.17 153.40 153.77 153.67 152.34 153.16 152.57 153.02 152.86 151.50 151.23 152.57 152.72 151.54 146.47 152.38 152.44 152.54 152.53 152.54 151.32…arrow_forwardIndicate the rate expressions for reactions that have order 0, 1, and 2.arrow_forwardPROBLEMS Q1) Label the following salts as either acidic, basic, or neutral a) Fe(NOx) c) AlBr b) NH.CH COO d) HCOON (1/2 mark each) e) Fes f) NaBr Q2) What is the pH of a 0.0750 M solution of sulphuric acid?arrow_forward
- 8. Draw all the resonance forms for each of the fling molecules or ions, and indicate the major contributor in each case, or if they are equivalent (45) (2) -PH2 سمة مدarrow_forwardA J то گای ه +0 Also calculate the amount of starting materials chlorobenzaldehyde and p-chloroacetophenone required to prepare 400 mg of the given chalcone product 1, 3-bis(4-chlorophenyl)prop-2-en-1-one molar mass ok 1,3-bis(4-Chlorophenyl) prop-2-en-1-one = 277.1591m01 number of moles= 0.400/277.15 = 0.00144 moles 2 x 0.00 144=0.00288 moves arams of acetophenone = 0.00144 X 120.16 = 0.1739 0.1739x2=0.3469 grams of benzaldehyde = 0.00144X106.12=0.1539 0.1539x2 = 0.3069 Starting materials: 0.3469 Ox acetophenone, 0.3069 of benzaldehyde 3arrow_forward1. Answer the questions about the following reaction: (a) Draw in the arrows that can be used make this reaction occur and draw in the product of substitution in this reaction. Be sure to include any relevant stereochemistry in the product structure. + SK F Br + (b) In which solvent would this reaction proceed the fastest (Circle one) Methanol Acetone (c) Imagine that you are working for a chemical company and it was your job to perform a similar reaction to the one above, with the exception of the S atom in this reaction being replaced by an O atom. During the reaction, you observe the formation of three separate molecules instead of the single molecule obtained above. What is the likeliest other products that are formed? Draw them in the box provided.arrow_forward
- 3. For the reactions below, draw the arrows corresponding to the transformations and draw in the boxes the reactants or products as indicated. Note: Part A should have arrows drawn going from the reactants to the middle structure and the arrows on the middle structure that would yield the final structure. For part B, you will need to draw in the reactant before being able to draw the arrows corresponding to product formation. A. B. Rearrangement ΘΗarrow_forward2. Draw the arrows required to make the following reactions occur. Please ensure your arrows point from exactly where you want to exactly where you want. If it is unclear from where arrows start or where they end, only partial credit will be given. Note: You may need to draw in lone pairs before drawing the arrows. A. B. H-Br 人 C Θ CI H Cl Θ + Br Oarrow_forward4. For the reactions below, draw the expected product. Be sure to indicate relevant stereochemistry or formal charges in the product structure. a) CI, H e b) H lux ligh Br 'Harrow_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 LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College DivChemistry 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 LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningGeneral, 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