General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Chapter 24, Problem 24.78QP
Interpretation Introduction
Interpretation:
Zwitterion of alanine has to be drawn and the form that predominates at the
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. Describe the pH range of acceptable buffering behavior for the amino acids alanine, histidine, aspartic acid, and lysine.
The following amino acid can exist in a basic solution.
HN*-CH-C
HO,
CH2
CH
H3C
CH3
OTrue
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at a pH value of 2, the amino and carboxyl groups in an amino acid will exist as
Chapter 24 Solutions
General Chemistry - Standalone book (MindTap Course List)
Ch. 24.1 - Prob. 24.1ECh. 24.3 - Prob. 24.1CCCh. 24.4 - Prob. 24.2CCCh. 24 - Prob. 24.1QPCh. 24 - Prob. 24.2QPCh. 24 - Prob. 24.3QPCh. 24 - Prob. 24.4QPCh. 24 - Prob. 24.5QPCh. 24 - Prob. 24.6QPCh. 24 - Prob. 24.7QP
Ch. 24 - Prob. 24.8QPCh. 24 - Prob. 24.9QPCh. 24 - Prob. 24.10QPCh. 24 - Prob. 24.11QPCh. 24 - Prob. 24.12QPCh. 24 - Prob. 24.13QPCh. 24 - Prob. 24.14QPCh. 24 - Prob. 24.15QPCh. 24 - Prob. 24.16QPCh. 24 - Prob. 24.17QPCh. 24 - Prob. 24.18QPCh. 24 - Prob. 24.19QPCh. 24 - Prob. 24.20QPCh. 24 - Prob. 24.21QPCh. 24 - Prob. 24.22QPCh. 24 - Prob. 24.23QPCh. 24 - Prob. 24.24QPCh. 24 - Prob. 24.25QPCh. 24 - Prob. 24.26QPCh. 24 - Prob. 24.27QPCh. 24 - Prob. 24.28QPCh. 24 - Prob. 24.29QPCh. 24 - Prob. 24.30QPCh. 24 - Prob. 24.31QPCh. 24 - Prob. 24.32QPCh. 24 - Prob. 24.33QPCh. 24 - Prob. 24.35QPCh. 24 - Prob. 24.36QPCh. 24 - Prob. 24.37QPCh. 24 - Prob. 24.38QPCh. 24 - Prob. 24.39QPCh. 24 - Prob. 24.40QPCh. 24 - Prob. 24.41QPCh. 24 - Prob. 24.42QPCh. 24 - If a codon consists of two nucleotides, how many...Ch. 24 - If a codon consists of four nucleotides, how many...Ch. 24 - Prob. 24.45QPCh. 24 - Prob. 24.46QPCh. 24 - Prob. 24.47QPCh. 24 - Prob. 24.48QPCh. 24 - Prob. 24.49QPCh. 24 - Prob. 24.50QPCh. 24 - Prob. 24.51QPCh. 24 - Prob. 24.52QPCh. 24 - Prob. 24.53QPCh. 24 - Prob. 24.54QPCh. 24 - Prob. 24.55QPCh. 24 - Prob. 24.56QPCh. 24 - Prob. 24.57QPCh. 24 - Prob. 24.58QPCh. 24 - Draw the zwitterion structure for the amino acid...Ch. 24 - Prob. 24.60QPCh. 24 - Prob. 24.61QPCh. 24 - Prob. 24.62QPCh. 24 - Prob. 24.63QPCh. 24 - Prob. 24.64QPCh. 24 - Prob. 24.65QPCh. 24 - Prob. 24.66QPCh. 24 - Prob. 24.67QPCh. 24 - Prob. 24.68QPCh. 24 - Prob. 24.69QPCh. 24 - Prob. 24.70QPCh. 24 - Prob. 24.71QPCh. 24 - Prob. 24.72QPCh. 24 - Prob. 24.73QPCh. 24 - Prob. 24.74QPCh. 24 - Prob. 24.75QPCh. 24 - Prob. 24.76QPCh. 24 - Prob. 24.77QPCh. 24 - Prob. 24.78QPCh. 24 - Prob. 24.79QPCh. 24 - Prob. 24.80QP
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- 22-49 Based on your knowledge of the chemical properties of amino acid side chains, suggest a substitution for leucine in the primary structure of a protein that would probably not change the character of the protein very much.arrow_forwardExplain why a protein is least soluble in an aqueous medium that has a pH equal to the isoelectric point of the protein.arrow_forwardGlutamic acid has three ionizable groups. The pKa of α-COOH is 2.19; α-NH 3 + , 9.67; and the R-group, 4.25. What is the charge of glutamic acid at pH 10.00?arrow_forward
- Draw the lewis structures of the following: alanine, asparagine, cysteine, glutamine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine. At a pH of 7.4. (May you check if those are the correct amino acid found in living cells)arrow_forwardNow let us look at a real amino acid, alanine. Fill in the chart below for each ionizable group. You need only the relationship discussed in the pdf posted and the numbers posted below. The next 6 questions will ask for the numbers you calculated for each of the letters below. pH when Average charge of group Group Ka pKa [A]/[HA] = 1 when pH = pK alpha-COOH ~10-2 A C alpha-NH3* ~10-9 Вarrow_forwardWrite the Zwitter ionic form of aminoacetic acid.arrow_forward
- Each ionizable group of an amino acid can exist in one of two states, charged or neutral. The electric charge on the functional group is determined by the relationship between its pKą and the pH of the solution. This relationship is described by the Henderson-Hasselbalch equation. Histidine has three ionizable functional groups. Complete the equilibrium equations by assigning the proper pKą for each ionization and the net charge on the histidine molecule in each ionization state. H || H,N*-C-C-OH H|| H,N*-C-C-o- H|| H,N*-C-C-o- H|| H,N-C-C-o- CH, CH, CH, CH, HN HN N -NH -NH -NH -NH Answer Bank pK, = 6.0 -1 pк, - 9.17 +2 -2 +1 pK, = 7.59 pK, = 1.8 %3D 1 1arrow_forwardAs the pH changes in an aqueous solution, Glutamic acid can exist in the neutral (zwitterionic) form and three different charged forms (with charge -2, -1 and +1). Draw these four forms of the molecule.arrow_forwardDraw the structures of the amino acids phenylalanine and aspartate in the ionization state you would expect at pH 7.0. Why is aspartate very soluble in water, whereas phenylalanine is much less soluble?arrow_forward
- Glutamic acid has three ionizable groups. The pKa of α-COOH is 2.19; α-NH 3 + , 9.67; and the R-group, 4.25. What is the predominant charge of glutamic acid at pH 10.00?arrow_forwardRank the following in order of increasing pH. Explain the basis of your ranking. Assume the concentrations are all 0.10 M. Attached Table Below. Piperazine Pyridine hydrochloride Phenylalanine Disodium phthalate Sodium prolinate Phosphoric acid.arrow_forwardFor the amino acid alanine, the major species in solution at pH 7 is the zwitterionic form, which has a negatively charged carboxylic acid group and a positively charged amino group. There is a less common neutral form in which neither group is charged. The carboxylic acid group of alanine has a p?a of 3 The amino group of alanine has a p?a of 8 Estimate the ratio of the concentration of the neutral amino acid species to the zwitterionic species at pH 7. __?__x10^?arrow_forward
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