Physical Properties

Hi. We were given a practice sheet with review questions. Can you briefly tell me why on each so I can apply it on test? Thanks. Higher solubility - Butanedioic acid or Butanal Higher mp - 2,3-dihydroxy propanal or Pentanal Lower mp - Sodium octanoate or Octanoic acid Lower solubility - 2-hexanone or 2-hexanol

acetal/ketal system in sucrose

Does sucrose (glucose (alpha 1-2) fructose) have a acetal or ketal system? Where?

2 compunds - isomers or enantiomers?

CH2OH CHO l l --l--OH --l--OH --l--OH --l--OH l l CHO CH2OH Are these compounds the same, ...continues

polymers

Could you explain the difference between an addition polymer and a condensation polymer, and give me an example of each.

Drawing structures of compounds

Draw the structure 4-methyl-2-chloro pentanal trans-3-chloro-2-fluoro cyclopentanone 3,5-dipropyl benzaldehyde 1,3 cycloheptadione *I drew these but I just want to double check, especially the last one. Thanks!!

Balanced Equations

Could you show me the steps involved in the formation of these compounds, and show the removal of water and the reactant. A) butyl propanoate B)propyl methanoate

alcohols

Could you show me how to draw all the alcohols that have the molecular formula C5H11OH. Could you give me the names and explain if they are primary, secondary, or tertiary.

Equations for hydrolysis of a triglyceride

Give the equations for: Acid catalyzed hydrolysis of a triglyceride Base catalyzed hydrolysis of a triglyceride

Zwitterionic/un-ionized/acidic structures of valine & phenylalanine

Write out the un-ionized structure of valine & phnylalanine. Do either have enantiomers? Write the zwitterion structures of both. Show what happens if it becomes more acidic. Write structure for phe-val (ionized or unionized). Is it the same as val-phe? Why? Would the dipeptide be neutral, acidic, or basic? Why? ...continues

Primary structure of glucagon - which would be inside of protein

GLucagon His-ser-glu-gly-thr-phe-thr-ser-asp-tyr-ser-lys-tyr-leu-asp-ser-arg-arg-ala-gln-asp-phe-val-gln-trp-leu-met-asn-thr Which of the amino acids in the molecule would you expect to be on the inside of the protein? Why?