1D.) In the ¹H-NMR spectra of carboxylic acids, the carbocylic acid proton bonded the oxygen atom typically fall into which of the chemical shift ranges below? a.) 2.0-2.5 ppm b.) 8.0-9.0 ppm 1E.) Complete this statement: Ketones and their corresponding enols are a.) tautomers b.) diastereomers 1F.) Anhydrides can be converted to acid chlorides by: c.) 7.0-8.0 ppm d.) 10.0-13.0 ppm of each other. c.) resonance structures d.) enantiomers

This question is based on the five compounds (A-E) given in the picture.  1) Would you expect any of the five compounds to have a pleasant, fruity aroma? Explain.

Predict whether each reaction proceeds predominantly by substitution (SN1 or SN2) or elimination (E1 or E2) or whether the two compete. Write structural formulas for the major organic product(s).

11

28. a) 60u Calculate the molecular mass of HNO3 b) 63u c) 65u

19.62 Naltrexone is used to help recovering narcotic addicts stay drug free. HO O OH naltrexone LO1,6,7 (a) Label and name all the functional groups. Where relevant, indicate whether the group is primary, secondary or tertiary. (b) Upon addition of dilute hydrochloric acid solution, naltrexone forms a water-soluble salt. Draw the structure of this salt.

QUESTION 15 What is the best polarity description of the ammonium ion considering only the bonds and atoms, but NOT considering the charge? O The bonds are nonpolar, but the molecule is polar, if the chagre is not considered. O The bonds are polar and the bond polarities add together making the molecule POLAR, if the chagre is not considered. O The bonds are not polar so the molecule is NON POLAR, if the chagre is not considered. O The bonds are polar, but the bond polarities cancel to give a NONPOLAR structure if the chagre is not considered. QUESTION 16 For the carbonate ion, provide the Formula, VE. Count, Geometry Name, and Number of Resonance Structures. CO22- 18, linear, 2 res. strs. co32 24, trigonal, 3 res strs. CO3, 24, trigonal pyramidal, 3 res. strs. O co2 12, linear, 1 res. str. QUESTION 17 For the phosphorus trifluoride, provide the Formula, V. E. Count, Geometry Name, Bond Polarity and Molecule Polarity. O PF3, 26, trigonal, polar bonds and polar molecule O PF3, 24,…

There are three compounds with same molecular formula C8H9Br, andit has been known that all these three compounds contain a phenyl ring, anethyl group, and a bromide atom. A cannot react with AgNO3. B reactswith AgNO3 smoothly at room temperature. C can react with AgNO3 athigh temperature. Try to give the structures of A, B and C.

1 of 2 Consider two Sn2 reactions: (1) a reaction between NaOH and 2-iodopropane and, (2) a reaction between NaOH and 2-chloropropane, both having the same concentration of reactants.

a) b) c) d) CI H3CH₂CC CH CO + CH3MgBr 1. 2 eq. PhMgBr 2. H3O+ 1. NaNH, 2. PhCHO 3. H₂O* Azculi + 1. ether 2. H30* -Br r