The structure of an unsaturated phospholipid is shown below. Which region of the molecule is most hydrophilic ? H₂N-CH₂ H₂C IV CH3 CH3 hydro-water philic-likes = Hydrophilic likes water ○ IV All regions are equally hydrophilic. III

4. Predict the esters formed in the following reactions. A catalytic amount of acid is added in each reaction. HO H3C + H;C HO, H3C HO, I OH H2 HO H3C HO

Consider a molecule of methyl methacrylate, shown above. If this molecule were to engage in hydrogen bonding with a molecule of acetone cyanohydrin, which would be the hydrogen bond acceptor and which would be the hydrogen bond donor?

In which of the following alcohol solvents do you think NaCl would be the most soluble? CH;OH CH;CH2OH CH3CH,CH,OH CH;CH,CH,CH,OH A В D

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Which of the following molecules would be the least soluble in water? O CH3CH2OCH3 O CH3CH2COOH O CH3CH2CH2CH3 O CH3CH2CHO O CH3COCH3

What's the unknown ketone and alcohol?

Give detailed Solution with explanation (no need Handwritten answer

aw the products for the following reactions showing the formation of amides. Name the 5. reactants and the products. CH Nit + Ho- Cat b) CH-CH NH looc Cat. oH -WH looc cat 6. Draw the products when each of the amides undergoes acid hydrolysis. Name the reactants and products. HCL Cty- -NH-C_Cy+ 0 HCL b) C-CH-N-&cnycy +4,0 HCL + H,0 dig

HO HO. OH base CI EIO- C-OEt epichlorohydrin OH NaOEt 2,6-dihydroxy- acetophenone *Na O2C. .CO2 Na* NaOH, H2O II OH Cromolyn sodium Cromolyn sodium, developed during the 1960s, has been used to prevent allergic reactions primarily affecting the lungs, as, for example, exercised- induced emphysema. It is thought to block the release of histamine, which prevents the sequence of events leading to swelling, itching, and constriction of bronchial tubes. v Cromolyn sodium is synthesized in the above series of steps. rch 31% 11:24 P 4/20/20-