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For each of the following reactions, predict the product by drawing a reasonable mechanism. What controls the regiochemistry in each case???
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- 5 À, b = 4 Á, c = 3 À, and ß = 95°, there is a metal (M) Q3) In a monoclinic crystal with a = atom at (0,0,0), another at (0,0,1) and an O at (1/4,1/4,1/2). 6. (a) What are the M-O bond distances? (b) What is the M-O-M bond angle?ksp for NiCO3 is 1.30 * 10 ^ -7especially for B TO X, D to Y, and G to H, I => React with (CH3CO)2O , : N (C2H5) 3
- An aqueous solution of SO2 reduces (a) aqueous KMnO4 toMnSO4(aq), (b) acidic aqueous K2Cr2O7 to aqueous Cr3 + ,(c) aqueous Hg2(NO3)2 to mercury metal. Write balancedequations for these reactions.R 400m N CO₂tBu OH CO₂Me Ph LDA THF, -78 °C silica gel 6 days room temperature R MeO₂C NCO₂Bu CHO CO,Me I + H₂Oeston 2 The complex (C u(NH,,"bb byht with a wamlength of 1,,1abserbs hight is the valus of A n K3 mele? 342 nm.What
- Suppose we introduce the following pointdefects.(a) Mg2+ ions substitute for yttrium ionsin Y2O3; (b) Fe3+ ions substitute for magnesiumions in MgO;(c) Li1+ ions substitute for magnesiumions in MgO; and(d) Fe2+ ions replace sodium ions inNaCl.What other changes in each structuremight be necessary to maintain a chargebalance? Explain.(d) Catalsi OH (3 methods) Na BHy (e) HO, CH30H ( 2 methods) OH OLIAIHY (f) (3 methods)The Ksp at 298 K for iron(II) fluoride is 2.4 * 10-6. (a) Write a half-reaction that gives the likely products of the two-electron reduction of FeF21s2 in water.
- 1. A Cr3+ solution is electrolyzed using a current of0.365 A. What mass of Cr(s) (51.9661) is plated outafter 10 hours?2. When an aqueous solution of CuSO4 is electrolyzedcopper metal is deposited. If a constant current waspassed for 5.00 h and 404 mg of Cu (63.546) metal wasdeposited, what was the current?[o Consider the reaction scheme below. Me Me of 210 210 COMI20 OH Hola Holensal,d bus 9 (ii) Explain briefly the observed regioselectivity. Iviz gniw 11 toshsvo beiniinoo noitz9 H® (cat.) With reference to the following reaction scheme: [monqo 1250 901 ayawis luna no br Me NaBH4, Et₂O (i) Draw a curved arrow mechanism to explain the transformation of 9 into 10. of main Me 101 anoitiba Ho HO Me, O Me 10 100 10 Stone & arq tot abortom saogo atowens 1004 Viitzut vford bre ooort mott gnis2 H) osogor (1) Me Miel Me 12 * OH (i) Draw Newman projections for the two lowest energy conformations of ketone 11. (ii) Considering your answer to part (i), identify which is the most reactive conformation of 11 and explain your choice. (iii) Indicate the stereochemistry (at C*) of the major diastereoisomer of alcohol 12. Use appropriate strereochemical drawings to explain your answer.(b) Draw and explain the cyclic voltammo- gram of Fe (n-C5H5)2 in CH₂Cl2, where [NBu4] [PF6] is used as supporting electrolyte and Pt electrode as working electrode.