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What is the mass spectrometry of this compound ?
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- Calculate the Keq for the following reaction, given that Eo Cd2+/Cd = -0.403 V and Eo Zn2+/Zn = -0.763. Overall rxn: Cd2+ + Zn <-> Zn2+ + CdRings + Unsaturation --- Hydrogenation If compound A C51H81BrN5O3P3 is hydrogenated to give compound B C51H101BrN5O3P3. How many rings does compound A have? Assume that P has a valency of 5. Would the answer be 4 rings? Formula -> unsat + rings = 1+C +N/2 - H/2 - X/2Giventhefollowingsetofreactionsandtheirenthalpies,drawtheBorn-Habercyclefortheformationof LiCl(s)anddeterminethelatticeenergyforLiCl.Reactions:H (in kJ)(1)Li(s)Li(g);Hs= 161;(2) Li(g)Li+(g)+e–;IE= 520;(3) ½Cl2(g)Cl(g);½BE =121.5;(4)Cl(g)+ e–Cl–(g);EA= –349;(5)Li+(g)+ Cl–(g)LiCl(s);UL= ?(UL= latticeenergy)(6) Li(s)+ ½ Cl2(g)LiCl(s);Hof=–408.6._______________________________________________________________________________
- Consider 1-bromopropane, CH3CH2CH2Br. (a) Draw Newman projections for the conformations in which -CH3 and -Br are gauche (dihedral angles 60° and 300°).Identify the stereochemistry of the indicated carbon, write R or S 1. 2. 3. 4. 5.Assign a priority order (from least to highest priority) to each of the following sets of groups: I. -OCH II. -NH(CH3)2 III. CH2NH2 IV. -OH A. IV, I, III, II B. III, II, IV, I C. II, III, IV, I D. III, IV, I, II
- Consider 1-bromopropane, CH3CH2CH2Br. (a) Draw a Newman projection for the conformation in which CH3 and -Br are anti (dihedral angle 180°). (b) Draw Newman projections for the conformations in which - CH3 and -Br are gauche (dihedral angles 60° and 300°). (c) Which of these is the lowest energy conformation? (d) Which of these conformations, if any, are related by reflection?Identify the following as closo, nido or arachno. Show worka) [B6C2H6]2- b) B10C2H12 c) [B11H13]2-For the given ee values, calculate the percentage of each enantiomer present.a. 90% eeb. 99% eec. 60% ee