Alanine is an amino acid with the formula C 3 H 7 NO 2 . Determine...
Alanine is an amino acid with the formula C 3 H 7 NO 2 . Determine the number of moles of carbon in 71.91 g of alanine. Can somebody please help me with this!! The subject is Chemistry.
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Alanine is an amino acid with the formula C 3 H 7 NO 2 .
Determine...
NAME 2a) Lanthionne is a dimeric amino acid with the chemical formula HOOC-CH NH CH SCH-CHINH COOH),- Lanthionine is composed of two alanine residues that are cross-linked on their ß-carbon atoms by...
NAME 2a) Lanthionne is a dimeric amino acid with the chemical formula HOOC-CH NH CH SCH-CHINH COOH),- Lanthionine is composed of two alanine residues that are cross-linked on their ß-carbon atoms by a thioether linkage. It can be synthesized by the Michael addition of cysteine to dehydroalanine (DHA, 2-aminoprop-2-enoic acid). ILLUSTRATE this Michael addition and its mechanism
NAME 2a) Lanthionne is a dimeric amino acid with the chemical formula HOOC-CH NH CH SCH-CHINH COOH),- Lanthionine is composed of two alanine...
Alanine (HA) is a diprotic amino acid with K_a1 = 4.53 times 10^-3 and K_a2 =...
Alanine (HA) is a diprotic amino acid with K_a1 = 4.53 times 10^-3 and K_a2 = 1.36 times 10^-10. Determine the pH of the following solutions. A) 0.260 M alanine hydrochloride (H_2 A^+ Cl^-) pH = B) 0.260 M alanine (HA) pH = C) 0.260 M sodium alaninate(Na^+ A^-) pH =
33) What is the overall charge of the amino acid, alanine, at pH 10? 33) B)-1...
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) Draw the structure Of amino acid alanine at ph 7 B) Draw the structure glutamine...
A) Draw the structure Of amino acid alanine at ph 7 B) Draw the structure glutamine at ph 4 C) Draw the structure serine at ph 10 (Draw Out all functional groups included in the structure)
12) use the amino acid alanine for the following questions, Sirolis hore Circle the pka T....
12) use the amino acid alanine for the following questions, Sirolis hore Circle the pka T. a) most acidic. proston (H₂N I Pka=2 6) determine the equilibrium constant H. for acid base reaction involving the Carboxylic acido vosopistost Men to lopno stod bado 750W NOWNW Cal @ PH=7.4, does the amino group " favor the protonated or deprotonats form. explain. het illos natin. 3 0 W
2. The structure of the solid phase Wang resin linker and the first amino acid that we will use i...
2. The structure of the solid phase Wang resin linker and the first amino acid that we will use in this lab is shown below Fmoc first amino acid linker a) (1 pt) If the resin has 0.72 mmol/g of this linker on the surface of the beads, and you use 300 mg of resin for the reaction, how many mmol of linker do you have? b) (3 pts) All peptides will use alanine at the C-tenminus (position 1), Fmoc-L-valine...
Determine the stereochemistry for each amino acid, and then convert them to Fischer projection: 0: (a)...
Determine the stereochemistry for each amino acid, and then convert them to Fischer projection: 0: (a) 20. Is the hydroxyl group on tyrosine ortho, meta, or para to the a-carbon? Mechanisms 21. Provide a mechanism for the acid-catalyzed esterification of aspartic acid in n-propanol. 22. The amino group of an amino acid can be acylated using acetic anhydride. (a) Provide a mechanism for the acylation of alanine using this reagent. (b) Predict the products from the acylation of lysine.
6. Transposon mutagenesis was performed to identify genes that are involved in the biosynthesis of theA amino acid alanine. A wildtype culture of E. coli was infected with a defective phage carrying...
6. Transposon mutagenesis was performed to identify genes that are involved in the biosynthesis of theA amino acid alanine. A wildtype culture of E. coli was infected with a defective phage carrying Tn10 A and the culture was plated on LB-tet media to obtain tet-resistant colony forming units. (LB is a rich growth media for E. coli and contains all amino acids required for bacterial growth) Individual CFU were then transferred to a multiwell plate containing liquid LB-tet media and...
please help A 1.470 g sample of an organic acid containing C, H and was combusted...
please help
A 1.470 g sample of an organic acid containing C, H and was combusted to determine the empirical formula. The combustion produced 3.810g of carbon dioxide (44,01 g/mol) and 1.820g of water(18.02 g/mol). Determine the number of moles of carbon in the compound, C- 12.01 g/mol H-1.01 g/mol 0-16.00 g/mol If 12.76 g of potassium phosphate reacts with excess lead(II) nitrate, a white precipitate of lead(11) phosphate forms in a solution of potassium nitrate. Write a balanced equation....
2. (16 points total) A naturally occurring amino acid with the formula C,HuNO3 gives the following...
2. (16 points total) A naturally occurring amino acid with the formula C,HuNO3 gives the following proton NMR spectrum when run in deuterium oxide with DCI added. The singlet at 5.1 ppm is from 4 protons on three different hetereoatoms merged into a single peak. a. Determine the structure of this amino acid. Draw your answer in the space below b. Fully annotate the NMR spectrum, label ALL peaks. 9 8 7 4 3
NAME 2a) Lanthionne is a dimeric amino acid with the chemical formula HOOC-CH NH CH SCH-CHINH COOH),- Lanthionine is composed of two alanine residues that are cross-linked on their ß-carbon atoms by a thioether linkage. It can be synthesized by the Michael addition of cysteine to dehydroalanine (DHA, 2-aminoprop-2-enoic acid). ILLUSTRATE this Michael addition and its mechanism
NAME 2a) Lanthionne is a dimeric amino acid with the chemical formula HOOC-CH NH CH SCH-CHINH COOH),- Lanthionine is composed of two alanine...
Alanine (HA) is a diprotic amino acid with K_a1 = 4.53 times 10^-3 and K_a2 = 1.36 times 10^-10. Determine the pH of the following solutions. A) 0.260 M alanine hydrochloride (H_2 A^+ Cl^-) pH = B) 0.260 M alanine (HA) pH = C) 0.260 M sodium alaninate(Na^+ A^-) pH =
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....
12) use the amino acid alanine for the following questions, Sirolis hore Circle the pka T. a) most acidic. proston (H₂N I Pka=2 6) determine the equilibrium constant H. for acid base reaction involving the Carboxylic acido vosopistost Men to lopno stod bado 750W NOWNW Cal @ PH=7.4, does the amino group " favor the protonated or deprotonats form. explain. het illos natin. 3 0 W
2. The structure of the solid phase Wang resin linker and the first amino acid that we will use in this lab is shown below Fmoc first amino acid linker a) (1 pt) If the resin has 0.72 mmol/g of this linker on the surface of the beads, and you use 300 mg of resin for the reaction, how many mmol of linker do you have? b) (3 pts) All peptides will use alanine at the C-tenminus (position 1), Fmoc-L-valine...
Determine the stereochemistry for each amino acid, and then convert them to Fischer projection: 0: (a) 20. Is the hydroxyl group on tyrosine ortho, meta, or para to the a-carbon? Mechanisms 21. Provide a mechanism for the acid-catalyzed esterification of aspartic acid in n-propanol. 22. The amino group of an amino acid can be acylated using acetic anhydride. (a) Provide a mechanism for the acylation of alanine using this reagent. (b) Predict the products from the acylation of lysine.
6. Transposon mutagenesis was performed to identify genes that are involved in the biosynthesis of theA amino acid alanine. A wildtype culture of E. coli was infected with a defective phage carrying Tn10 A and the culture was plated on LB-tet media to obtain tet-resistant colony forming units. (LB is a rich growth media for E. coli and contains all amino acids required for bacterial growth) Individual CFU were then transferred to a multiwell plate containing liquid LB-tet media and...
please help
A 1.470 g sample of an organic acid containing C, H and was combusted to determine the empirical formula. The combustion produced 3.810g of carbon dioxide (44,01 g/mol) and 1.820g of water(18.02 g/mol). Determine the number of moles of carbon in the compound, C- 12.01 g/mol H-1.01 g/mol 0-16.00 g/mol If 12.76 g of potassium phosphate reacts with excess lead(II) nitrate, a white precipitate of lead(11) phosphate forms in a solution of potassium nitrate. Write a balanced equation....
2. (16 points total) A naturally occurring amino acid with the formula C,HuNO3 gives the following proton NMR spectrum when run in deuterium oxide with DCI added. The singlet at 5.1 ppm is from 4 protons on three different hetereoatoms merged into a single peak. a. Determine the structure of this amino acid. Draw your answer in the space below b. Fully annotate the NMR spectrum, label ALL peaks. 9 8 7 4 3
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