ORGANIC CHEMISTRY (LOOSELEAF)-PACKAGE
10th Edition
ISBN: 9781260008562
Author: Carey
Publisher: MCG
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Chapter 26.7, Problem 16P
Interpretation Introduction
Interpretation:
The net charge on oxytocin at
Concept Introduction:
The carboxyl and
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4b) Canavanine is closely related to arginine, and like arginine its side group has a +1 charge when protonated. If you dissolved canavanine in an aqueous solution at pH 10, what would the net charge on a molecule of canavanine be? Please show your work or make it clear how you determined the charge contribution from each ionizable group.
Draw the structure of alanine in a solution at pH = 0
Given that C6H11COOH has a pKa = 4.8 and C6H11N + H3 has a pKa = 10.7, what pH would you make the water layer to cause both compounds to dissolve in it?
Chapter 26 Solutions
ORGANIC CHEMISTRY (LOOSELEAF)-PACKAGE
Ch. 26.1 - Prob. 1PCh. 26.2 - Prob. 2PCh. 26.2 - Prob. 3PCh. 26.3 - Prob. 4PCh. 26.3 - Prob. 5PCh. 26.4 - Prob. 6PCh. 26.4 - Prob. 7PCh. 26.4 - Prob. 8PCh. 26.5 - Prob. 9PCh. 26.6 - Prob. 10P
Ch. 26.6 - Prob. 11PCh. 26.6 - Prob. 12PCh. 26.7 - Prob. 13PCh. 26.7 - Prob. 14PCh. 26.7 - Prob. 15PCh. 26.7 - Prob. 16PCh. 26.7 - Prob. 17PCh. 26.9 - Prob. 18PCh. 26.10 - Digestion of the tetrapeptide of Problem 26.18...Ch. 26.12 - Prob. 20PCh. 26.12 - Prob. 21PCh. 26.15 - Prob. 22PCh. 26.15 - Prob. 23PCh. 26.16 - Prob. 24PCh. 26.17 - Prob. 25PCh. 26.18 - Prob. 26PCh. 26 - Prob. 27PCh. 26 - Prob. 28PCh. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 32PCh. 26 - Prob. 33PCh. 26 - Prob. 34PCh. 26 - Prob. 35PCh. 26 - Prob. 36PCh. 26 - Prob. 37PCh. 26 - Prob. 38PCh. 26 - Prob. 39PCh. 26 - Prob. 40PCh. 26 - If you synthesized the tripeptide Leu-Phe-Ser from...Ch. 26 - Prob. 42PCh. 26 - Prob. 43PCh. 26 - Prob. 44PCh. 26 - Prob. 45DSPCh. 26 - Prob. 46DSPCh. 26 - Prob. 47DSPCh. 26 - Prob. 48DSPCh. 26 - Prob. 49DSPCh. 26 - Prob. 50DSP
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- Indicate whether each statement is true or false. (a) Tryptophan is an aromatic amino acid. (b) Lysine is positively charged at pH 7. (c) Asparagine has two amide bonds. (d) Isoleucine and leucine are enantiomers. (e) Valine is probably more water-soluble than arginine.arrow_forwardThe imidazole ring on Histamine has a pKa of 6.5. What is the %ionization of this group at pH 8.2?arrow_forwardDraw the structure of CH3COOH (pKa = 4.7) at pH = 2, pH = 7, and pH = 10.arrow_forward
- Draw the structure of the most abundant form of cysteine in solutions whose pH values are 1, 4, 6, 9, and 11.arrow_forwardplease explain What percentage of a side-chain sulfhydryl group of cysteine is protonated at pH 7.9?arrow_forwardWhat is the pKa of sodium hydrogen oxalate (C2H3NaO5)?arrow_forward
- What is the ratio of base [A] to acid [HA] at pH 4, 5, 6 and 7 for an acid with a pka of 6?arrow_forwardDraw a structural formula for the form of amino acid most prevalent at pH 1.0. (a) Threoninearrow_forwardExplain why the pI of lysine is the average of the pKa values of its two protonated amino groups.arrow_forward
- Please consider the structural formula of the amino acid shown below when answering the following questions. Assume that the pKa values are as shown below. (A) draw the form of this amino acid that predominates at pH 8 (B) classify the amino acid as hydrophilic or hydrophobic (C) what is the net charge of this amino acid at pH 1?arrow_forward4. For the Amino Acid you have been assigned, at the pH values provided, draw the structure(s) at each of the specified pH values. serine and pH = 0, 7, and 9 5. What is the overall charge for each of the structures you drew?arrow_forwardThe pka of ascorbic acid is 4.2 at 24C. At what pH is the ratio of the deprotonated form to the protonated form 10:1? Prove using the Henderson-Hasselback equation. How to resolve this.arrow_forward
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