Amino acid D has pK of 4.7. What is the ratio of [D-]/[D] at pH 4.7? (a) 0.1 (b) 1 (c) 10 (d) 100
Can someone tell me the answer and also explain the concept
this is the simple question
from the application of Handerson-Hasselbalk equation
Amino acid D has pK of 4.7. What is the ratio of [D-]/[D] at pH 4.7?...
question 1. Tell me the likely charges on the following amino acids at the indicated pH. (please describe the steps) thanks. Aspartic acid (pK 4.7) at a pH of 9 Glutamic acid (pK 4.7) at a pH of 2 Lysine (pK of 10.2) at a pH of 7 Lysine (pK of 10.2) at a pH of 10.2
11. If a weak acid has a pK of 5, what is the ratio of [base]/[acid] at pH 5? 12. If a weak acid has a pK of 5, what is the ratio of [base|/[acid] at pH 4? 13. If a weak acid has a pK of 5, what is the ratio of [base]/[acid] at pH 6? 14. If a weak acid has a pK of 4 what the pH when the ratio of [base]/[acid] is 4? 15. If a...
The amino group of Gly has a pka of 9.6. What is the nh2/nh3+ ratio when ph of a gly solution is 8.6? a. 1 b. .5 c. 10 d. .1 the answer is 0.1 but could you please explain how this is done
The pK of the side chain of amino acid X in a polypeptide is normally in the range of 9-10 and carries a positive charge when protonated. Suppose you have a soluble globular protein and you find there is an X that has a pK of 6.5. What is the most likely reason for such a large drop in pK? Circle the correct answer. a) X is on the surface of the protein where it ion pairs with the carboxylate...
A non-natural amino acid has been synthesized. The carboxylic acid has a pk - 3.21, the protonated amine has a pk = 9.59, and the side chain contains an alcohol which has a pk = 16.09. What is the pl of this amino acid? Your answer should be to the nearest hundredths. a Answer:
A non-natural amino acid has been synthesized. The carboxylic acid has a pk - 3.21, the protonated amine has a pk = 9.59, and the side chain contains an alcohol which has a pk = 16.09. What is the pl of this amino acid? Your answer should be to the nearest hundredths. a Answer:
33) What is the overall charge of the amino acid, alanine, at pH 10? 33) B)-1 D) No overall charge 34) As applied to the chemistry of amino acids, what is the definition for the isoelectric 34) point? A) The pH at which the amino acid exists primarily in its neutral form. B) The pH at which the amino acid exists primarily in its acidic form. C) The pH at which the amino acid exists as a mixture of isomers....
A non-natural amino acid has been synthesized. The carboxylic acid has a pk = 3.04, the protonated amine has a pk, = 9.43, and the side chain contains a pyridine which, when protonated, has a pk, = 5.20. What is the pl of this amino acid? Your answer should be to the nearest hundredths. 00 ton Answer:
A non-natural amino acid has been synthesized. The carboxylic acid has a pk - 3.21, the protonated amine has a pk = 9.59, and the side chain contains an alcohol which has a pk = 16.09. What is the pl of this amino acid? Your answer should be to the nearest hundredths. a Answer: For each compound, indicate if it will or will not produce one of the 20 naturally occuring amino acids if used as the starting material in...
(b) The amino acid lysine has the following values of pK : PK1 =2.2, pK2 = 8.9, PKR = 10.5 (the pK, of the amino group in the side chain). At pH 7 it has the structure shown below (6). Draw the structure that you would expect for lysine at pH 9.7, indicating the charges as appropriate. HZN 0 HINA (2 marks) (c) Phenol (C6H5OH) and 2,4,6-trichlorophenol (C6H2C13OH) are both weak acids with pK, values of 9.89 and 6.21, respectively,...