Complete the structure of thalidomide by drawing multiple bonds

2. You made a pH=2.5 buffer solution by mixing NaOH and glycine to give a solution that is 0.20 M in total concentration of glycine. (pka1=2.34 and pka2=9.69) a) What 2 glycine species are present in the buffer solution at this pH? (draw their structures) b) What is the concentration ratio of these 2 species? c) How many moles of each species, A- and HA, is there in 500 ml of the buffer solution. d) If 25 ml of 0.82 M HCI is added to 500 ml of this buffer solution. What reaction is taking place? What is the final pH of the solution? Is the solution still a buffer? e) Draw the titration curve, pH versus equivalents of OH-, for glycine and determine the pl.

1. For the test for sulfur in egg albumin, would you conclude that sulfur is present on it? Explain. 2. If sulfur is present in egg albumin, what are the possible organic compounds which contains sulfur on it? You can search the internet for this. Cite your references.

8. Write the systematic name for each glycosidic bond. CH₂O HO OH CH OHHO 8-439 OH HO OH CHION QIL CH₂OH toll

6. What functional groups are present in the following molecule? H2N. он NH2 A) amine and carboxylic acid B) amine, ketone and carboxylic acid C) amine, amide and carboxylic acid D) alcohol, amine, amide and carboxylic acid none of the above are correct E)

1. Each "20-mg" capsule of Prozac contains 22.5 mg of fluoxetine HCL (m.w. 345.63) equivalent to 20 mg of fluoxetine base. Calculate the molecular weight of the fluoxetine base. Round your answer to the HUNDRETHS decimal place. 2. Each "100-mg" tablet of Imitrex contains 140 mg of sumatriptan succinate equivalent to 100 mg sumatriptan base. If the molecular weight of sumatriptan succinate is 413.5, calculate the molecular weight of sumatriptan base. Round your answer to the HUNDRETHS decimal place.

1. provide three reasons why most of the research on carotenoids concentrates on b-carotene.   2. draw the retinol ester that has stearic acid as the carboxylic acid portion of its structure.

6. Which class or reactions results in the degradation of all macromolecules: a) dehydration synthesis of monomersà polymers with the loss of an H2O with the addition of each monomer b) hydrolysis with the addition of one H2O for each reaction c) oxidation with the loss of an e- d) reduction with the gain of an e-

16. Please name the Glycosidic bond of the following disaccharides: HOCH₂ H H HO\OH 0 H H OH H HOCH2 0- 2 H H HO/CH.OH CH₂OH OH H