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how would I do number 5??
13. Why dr to the ch 5. Draw the dissociation...
I have absolutely no idea how to do this question, or where even to start. There...
I have absolutely no idea how to do this question, or where even
to start. There is no other information given for the question to
solve. kw=1.0x10-14
4. (4 points) Lysine is triprotic amino acid (separately loses three H’s in solution). The pKa's are 2.18, 8.95, and 10.53. a. Write the three ionization equilibrium reactions for lysine (C6H5N2O2). pk = 10.5 NH, CH2 CH2 b. Determine the concentration of each species in a 0.10 M solution. CH2 CH, *H3N-CH- pk...
Lysine has pKa values as illustrated on the diagram below a) H3N ОН рК, 2.18 NH3 pKa 10.53 + рка, 8.95 Calculate the is...
Lysine has pKa values as illustrated on the diagram below a) H3N ОН рК, 2.18 NH3 pKa 10.53 + рка, 8.95 Calculate the isoelectric point for lysine i) Draw the predominant structure of lysine at pH>12 i b) The amino acid Tyrosine can be used in automated peptide synthesisers but this requires protected forms of the amino acid H2N ОН Он Tyrosine Show how you can synthesise N-protected and C-protected serine derivatives i) ii Show schematically a method to couple...
Would you expect the dipeptide valylalanine to give a positive reaction with nitric acid solution? Why...
Would you
expect the dipeptide valylalanine to give a positive reaction with
nitric acid solution? Why or why not?
3, Would you expect the dipeptide valylalani Why or why not? alanine to give a positive reaction with nitric acid solution? 4. In the chromatogram below, calculate an Re for each component of the mixture. Which componert is probably the more polar compound? Solvent front Origin From a book or Internet source, find the pl of the amino acid lysine. What...
5. D-sorbital is found in 'sugar-free' chewing gum. It is formed by reducing D-glucose with NaBH Draw the structure of D-sorbital. s. (4 pts) Classify the following amino acid as polar, n...
5. D-sorbital is found in 'sugar-free' chewing gum. It is formed by reducing D-glucose with NaBH Draw the structure of D-sorbital. s. (4 pts) Classify the following amino acid as polar, non- polar, acidic, or basic: 6 (4 pts) The amino acid threonine (thr) has two chiral carbons. Draw a Fischer projection of the 2S,3S configuration of threonine. キ 7.(11 pts) Draw the tripeptide lys-asp-ser at physiological pH 8. (8 pts) The pK, values for aspartic acid are 2.10, 9.82...
Please explain! I know the answers already but I do not understand how to find them....
Please explain! I know the answers already but I do not
understand how to find them.
H3 ОН (10) O(2) Question 2 (24 pts) This small protein has just the 6 ionizable side chains together with N and C termini (pK values in parentheses). 0.1 moles of the protein, in the ionic form shown, is dissolved in 1 L of pure water ("the(9H3N original solution"). Please answer the following questions COO a) what is the approximate pH of the original...
(3 points) A 0.0730 M solution of a monoprotic acid is 1.07% ionized. What is the...
(3 points) A 0.0730 M solution of a monoprotic acid is 1.07% ionized. What is the pH of the solution? Calculate the Ka of the acid. (2 points) The pH of a 0.025 M solution of a monoprotic acid is 3.21. What is the Ka value for the acid? (2 points) Determine the percent ionization of a 0.0028 M HA solution. (Ka of HA = 1.4 x 10-9) (4 points) Lysine is triprotic amino acid (separately loses three H’s in...
Answer every single question please don’t Leave any Quiz 2 Ch 5 I. The complete breakdown...
Answer every single question please don’t Leave any
Quiz 2 Ch 5 I. The complete breakdown of a glucose molecule yields ATP 2. The complete breakdown of a triacylglycerol molecule yields ATP 3. The electron transport chain (ETC) is an exarnple of A. Endergonic reaction B. Exergonic reaction 4. The short-term energy system is also called A. Cori cycle system C. Lactic acid system system B. ATP-PCr D. Lactate shuttle 5. How much ATP do we store? A. 10-20g B....
#1) For the following pentapeptide (Where pH =1): a) What would the net charge be for...
#1) For the following pentapeptide (Where pH =1):
a) What would the net charge be for the following pH?
pH 0 =
pH 3 =
pH 5 =
pH 7 =
pH 10 =
pH 13 =
b) Calculate the pl of the pentapeptide. (Cysteine: pK1 = 1.96,
pK2 = 10.128) ( Glutamine: pK1 = 2.17 , pK2 = 9.13) (Arginine: pK1
= 2.17. pK2 = 9.04) (Leucine: pK1 = 2.36 , pK2 = 9.60)
c) If you were to...
31 13. Draw a correct structure of folic acid, with the pteroate ring tautomerized in the...
31 13. Draw a correct structure of folic acid, with the pteroate ring tautomerized in the same was as I have drawn it in Lecture 9 section 9.1.2. In your structure, show the carboxylate groups ionized as they would be at pH 7.5. Label the following features of the structure: 1. The p-aminobenzoate group (PABA). 2. The L-glutamic acid residue. 3. Circle each of the two-C=N-double bonds that are reduced to convert folic acid into tetrahydrofolate. 4. Label the pteridine...
c) You place your pentapeptide into a buffer with a pH=4. What direction will your pentapeptide...
c) You place your pentapeptide into a buffer with a pH=4. What direction will your pentapeptide move: Circle the correct answer. (2 marks) It will not move. Towards the positive electrode Towards the negative electrode Briefly Explain why: (2 marks) d) You are trying to separate 2 other peptides from your pentapeptide. Peptide 1 is made up of the amino acids: ARKS Peptide 2 is made up of the amino acids: ADES At what pH would you be able to...
I have absolutely no idea how to do this question, or where even
to start. There is no other information given for the question to
solve. kw=1.0x10-14
4. (4 points) Lysine is triprotic amino acid (separately loses three H’s in solution). The pKa's are 2.18, 8.95, and 10.53. a. Write the three ionization equilibrium reactions for lysine (C6H5N2O2). pk = 10.5 NH, CH2 CH2 b. Determine the concentration of each species in a 0.10 M solution. CH2 CH, *H3N-CH- pk...
Lysine has pKa values as illustrated on the diagram below a) H3N ОН рК, 2.18 NH3 pKa 10.53 + рка, 8.95 Calculate the isoelectric point for lysine i) Draw the predominant structure of lysine at pH>12 i b) The amino acid Tyrosine can be used in automated peptide synthesisers but this requires protected forms of the amino acid H2N ОН Он Tyrosine Show how you can synthesise N-protected and C-protected serine derivatives i) ii Show schematically a method to couple...
Would you
expect the dipeptide valylalanine to give a positive reaction with
nitric acid solution? Why or why not?
3, Would you expect the dipeptide valylalani Why or why not? alanine to give a positive reaction with nitric acid solution? 4. In the chromatogram below, calculate an Re for each component of the mixture. Which componert is probably the more polar compound? Solvent front Origin From a book or Internet source, find the pl of the amino acid lysine. What...
5. D-sorbital is found in 'sugar-free' chewing gum. It is formed by reducing D-glucose with NaBH Draw the structure of D-sorbital. s. (4 pts) Classify the following amino acid as polar, non- polar, acidic, or basic: 6 (4 pts) The amino acid threonine (thr) has two chiral carbons. Draw a Fischer projection of the 2S,3S configuration of threonine. キ 7.(11 pts) Draw the tripeptide lys-asp-ser at physiological pH 8. (8 pts) The pK, values for aspartic acid are 2.10, 9.82...
Please explain! I know the answers already but I do not
understand how to find them.
H3 ОН (10) O(2) Question 2 (24 pts) This small protein has just the 6 ionizable side chains together with N and C termini (pK values in parentheses). 0.1 moles of the protein, in the ionic form shown, is dissolved in 1 L of pure water ("the(9H3N original solution"). Please answer the following questions COO a) what is the approximate pH of the original...
Answer every single question please don’t Leave any
Quiz 2 Ch 5 I. The complete breakdown of a glucose molecule yields ATP 2. The complete breakdown of a triacylglycerol molecule yields ATP 3. The electron transport chain (ETC) is an exarnple of A. Endergonic reaction B. Exergonic reaction 4. The short-term energy system is also called A. Cori cycle system C. Lactic acid system system B. ATP-PCr D. Lactate shuttle 5. How much ATP do we store? A. 10-20g B....
#1) For the following pentapeptide (Where pH =1):
a) What would the net charge be for the following pH?
pH 0 =
pH 3 =
pH 5 =
pH 7 =
pH 10 =
pH 13 =
b) Calculate the pl of the pentapeptide. (Cysteine: pK1 = 1.96,
pK2 = 10.128) ( Glutamine: pK1 = 2.17 , pK2 = 9.13) (Arginine: pK1
= 2.17. pK2 = 9.04) (Leucine: pK1 = 2.36 , pK2 = 9.60)
c) If you were to...
31 13. Draw a correct structure of folic acid, with the pteroate ring tautomerized in the same was as I have drawn it in Lecture 9 section 9.1.2. In your structure, show the carboxylate groups ionized as they would be at pH 7.5. Label the following features of the structure: 1. The p-aminobenzoate group (PABA). 2. The L-glutamic acid residue. 3. Circle each of the two-C=N-double bonds that are reduced to convert folic acid into tetrahydrofolate. 4. Label the pteridine...
c) You place your pentapeptide into a buffer with a pH=4. What direction will your pentapeptide move: Circle the correct answer. (2 marks) It will not move. Towards the positive electrode Towards the negative electrode Briefly Explain why: (2 marks) d) You are trying to separate 2 other peptides from your pentapeptide. Peptide 1 is made up of the amino acids: ARKS Peptide 2 is made up of the amino acids: ADES At what pH would you be able to...
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