Chemistry Questions and Answers January 21, 2020

Draw a stepwise mechanism for the conversion of hex5en1ol to the cyclic ether A. HO H2SO4 hex5en1ol A

Draw a stepwise mechanism that shows how all three alcohols are formed from the bicyclic alkene. . H2SO4 HO,

A compound containing only carbon and hydrogen is analyzed, and is found to contain 20.11% hydrogen on a mass basis. Show how the empirical formula of the compound may be calculated.

Thymidylate synthase (TS) is critical in the early stages of DNA biosynthesis. Thymidylate synthase (show below) possesses three critical amino acid residues: Cys 198, Arg 218, and Glu 60. What are the critical interactions shown for each amino acid shown below. Propose mutations that would not result in a loss of activity for each critical amino

EGlu60 OH deoxyR HN ECys198 EGlu60 NH NH EArg218 deoxyR wwwwwwwww S ECys198 IZ MTF CH2 NHR Thymidine

What is the molar mass of a gas that has a density of 1.02 g/L at 0.990 atm pressure and 37C?