Oc-OH Which of the following can be hydrolyzed with acid to give benzoic acid, NO2 CN HN-NH2 OCCH, сно A Select one: O a. A O b. D O c. B O d. C О .Е
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- Thioglycolic acid, HSCH2CO2H, a substance used in depilatory agents (hair removers) has pKa = 3.42. What is the percent dissociation of thioglycolic acid in a buffer solution at pH = 3.0?The boiling points of a range of organic compounds (A-D) of similar Mol. Wt.s are given below. OH OMe A в D b.p. 46-50°C Explain why the boiling point of C is higher than that of D. Explain why the boiling point of B is higher than that of A. Explain why the boiling point of C is higher than that of A. Which of these four compounds is most acidic? What makes it so acidic? b.p. 78'C b.p. 141'C b.p. 79'C (i) (ii) (iii) (iv)MC 15 How many H atoms of the compound shown can be replaced by D with D2O under basic conditions? a. b. C. d. e. 1 63 ENT 2 3 9
- the aryl compound with higher basicity from the following compounds : Select one: a. H2N b. H2N H2N d. H2N NO2 OCH3 CN CIWhat is the product from the following reaction? H. HO A C n-BuLi THF, -78°C; NH4CI (sat. aq.) H I D D HO B ?? E OHRank the following compounds in order of decreasing acidity. CH4 F3C- HO. H3C-S- HO. ОН A B C A: [ Select ] B: [ Select ] C: [Select] D: [ Select ]
- Determine which producevthe least basic primary amine 1. NaN3 2.H2/Pd Br А. H2/Pd,C 'NO2 Br 1. NaCN/HCI 2.H2/Pd,C С. D. A and C B.For the alid- cate R of the fall owing nuing Cate propose a meeheni'sm y Zeal ving calreparagd openin lactonc by g me thahal- use H-Bor on acid and B its con jugate base. 6. CH3alt Cat-TsolfWhat is the product of the following reaction: Zn(Hg) HC он OH B) C ii. В ii. A iv. None 39
- Consider the three compounds A -C: CH,OH C b.p. 118°C b.p. 57 C b.p. 65°C Explain why the boiling point of A is higher than that of B. Explain why the boiling point of A is higher than that of C. (ii) Predict the products of the following reaction: NaOH D +E Predict the product of the following reaction: H cat.Which compound would be the STRONGEST acid? Select one: O a. CH3CHCICHCICO₂H O b. CICH₂CHCICH₂CO₂H O c. CHCl₂CH₂CH₂CO₂H O d. CH3CH₂CCl₂CO₂H20:55 ok ht nces Draw the products of the following acid-base reaction, and determine if equilibrium favors reactants or products. Be sure to include counter ions. The equilibrium favors: -OH + Na₂CO3 products O reactants neither draw structure ... + NaHCO3