draw the structure of the two ionization states (forms) of threonine that would be found in milk (pH6.5) what would the ratio of these states be at this pH?
draw the structure of the two ionization states (forms) of threonine that would be found in...
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...
3. Draw the predominant forms of lysine (in terms of the protonation states of the amino and carboxylic acid groups) at pH 1,6,8, and 12. Ignore stereochemistry 3. Draw the predominant forms of lysine (in terms of the protonation states of the amino and carboxylic acid groups) at pH 1,6,8, and 12. Ignore stereochemistry
Draw the structure of a tripeptide Gln-Ile-Asp with the correct ionization at pH 7.
Chair Forms of Substituted Cyclohexanes For each structure or name below, draw both chair forms of the compound and indicate which of the two is more stable. Consult the table of A values here. 16. 1-tert-butyl-1-methylcyclohexane Ph 19. 17. trans-1,3-dibromocyclohexane 18. Cl 20. OH
(a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why?
(a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why?
4 4. (a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why? 5. Draw the Newman projections for the anti conformation and two types of eclipsed conformations of 1,2-diiodoethane. Of the two eclipsed conformations, which is of higher energy, and...
Please answer in detail 4. (a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why?
Model 1 for reference, draw the structure of the given amino acid as it nly exist under each of the following conditions for 1g.using Table 1 in a. valine; in the stomach at PH 1.5 Serine; in the small intestine at pH 10 c. Glutamate; in the blood plasma at pH 7.4 Information: Isoelectric points As shown in Model 3, amino acids do not normally exist in unionized forms. When an aminc acd contains both a (+) and a ()...
A 0.15 M solution of an acid found in milk has a pH of 2.80. What is the percentage ionization of the acid? 1.056 Percent ionization = Olo What is the value of Ky for the acid? Ka =