Draw a major resonance contributor of this enolate anion. Include all lone pairs in your structure. :0: O:☀ Drawing

Draw the organic product of the Bronsted acid-base reaction between the compounds shown below. Include all lone pairs and charges as appropriate. Ignore any counterions. •H :F: :O: :O: H Na Ⓒ 0:0- H

What would be found in an HNMR of this compound? N- O :O

Draw the major organic product of the Bronsted acid-base reaction between the compounds shown below. Include all lone pairs and charges as appropriate. Ignore any counterions. HH 1 eq. base H H H o

Macmillan Learning Rank the nitrogen-containing aromatic molecules in order of increasing basicity. Br CH3 Least basic Most basic Answer Bank HIZ:

Need help drawing any other resonance structures of A.

51. Which is NOT a valid resonance structure for the conjugate base of this molecule? (A) (C) S (A) OEt O :O: : OEt HBr ROOR OCH 3 (B) 52. What is the major product of this reaction sequence? O PPh3 (D) 11 Mg ether (B) de OEt :0 aom Сосно LOCH 3 53. Which reagent is necessary for this transformation? (D) H OEt H OEt CH31 PPh3 ACS 56.

Draw the major organic product of the Bronsted acid-base reaction between the compounds shown below. Include all lone pairs and charges as appropriate. Ignore any counterions. •N₂ H H 1 eq. base H H H

Identify the most and the least acidic compound in each of the following sets. Leave the remaining answer in each set blank. a) 2,4-dinitrobenzoic acid: v p-nitrobenzoic acid: p-bromobenzoic acid: b) benzoic acid: v formic acid: v propanoic acid: c) cyclohexanol: v phenol: v benzoic acid:

Rank the nitrogen-containing aromatic molecules in order of increasing basicity. Least basic :ZII Br CH3