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- Identify the best conditions to complete the SN2 reaction shown below. Tap here or pull up for additional resources Br CN A) HBr, THF B) NaCN, DMSO C) NaCN, MeOH D) NaNH2, DMSO E) NaN, DMSO (3. Rank the following groups of species in terms of increasing acid strength: Answers in parentheses a) H₂O, H₂S, and H₂Se. b) HBrO2, HBrO, HBrO3 c) CF3COOH, CH³COOH, CCI³COOH, CHCI₂COOH4. Rank the following compounds in decreasing (strongest to weakest) order of basicity. NH₂ O₂N || NH₂ NH₂ B. II > III >> IV E. III >II>I>IV 11 ||| A. I> ||| > || > IV D. IV > III >II>I 5. Predict the product for the following reaction. CN H₂/Ni NH₂ NH₂ A. IB. II C. III D. IV E. I and II IV NH₂ C. IV> | > | > IV CN IV "NH₂
- Identify the best conditions to complete the SN2 reaction shown below. Br CN A) HBr, THF B) NaCN, DMSO C) NaCN, MeOH D) NaNH2, DMSO E) NaN, DMSOthe Lewis acid and Lewis base and wheather they are Bronsted acids and Bronsted bases A. Where are the corved arrow mechanisms locate? In each step, indicate B. What is the number of transition states and the number of intermediate in the mechanism C. What are all of the reasonable resonance contributors. = !01: CH3OH heat D :0 CH3C341 Chapters (Acid-base chemistry) 9.) Acid-base equilibrium. For each reaction, perform the following tasks: a.) Complete the following reactions using the appropriate curved arrows to demonstrate the flow of electrons pairs in each potential reaction. b.) Indicate if the reaction lies to the right or the left (circle the correct arrow direction). c.) Calculate an approximate Ken for each reaction. d.) Write the pKa values under each acid, so we can evaluate your progress better and award partial credit. d.) Finally, label the acid (A), base (B), conjugate acid (CA) and base (CB) correctly based on the direction you decided. Keq = Direction: OH eg HO Keq = Direction: Keq = Direction: LOH OH ONa لها LIⒸ CHgLi Page 5 of 7
- 16) Reactivity of carboxylic acid 4 its derivatives. Determine which reagents are needed to complete traneformationg a) Dsocla 2) NaCl, DMSO b)) Nacl, DMSO c) D HCI, heat d) Dsocla e) ) Socla 2) Na NH3, IH] 2) Na NH3, H20 2) XSCH3 NH2 2) XS NH3Identify the best conditions to complete the SN2 reaction shown below. N3 A) CHI, THF B) NaCN, DMSO C) NaN», ethylamine D) KI, THF E) NaN, DMFDo the reactions below proceed in good yield from left to right as shown? a) b) HO c) OH excess Submit Answer H₂N. 1 equivalent OH trace of HCI remove H₂O py Retry Entire Group 8. trace of Na OCH₂CH3 + H₂O 2 more group attempts remaining OH اسلام OH
- 17. Mechanism aq NaOH H3O+ HO, 18. Mechanism cat. TSOH HO, MEOH, refluxIdentify the best conditions to complete the SN2 reaction shown below. CI A) NaN, DMSO B) NaCN, ETOH C) NaCN, acetonitrile D) NaNH2, acetonitrile CN E) LİCI, THFa. Give full curved arrow pushing mec following reaction, and draw a reaction energy diagram. b. On the diagram, indicate the activation energy for the rate determining step, the reaction exothermicity, the positions of the intermediates and the transition states. c. Indicate Lewis and Bronsted acids/bases (LA/LB/BA/BB) for each intermolecular step. energy H₂O H₂SO4 (cat.)/heat LOH