The ratio of reactivity of tertiary:secondary:primary hydrogen atoms in a bromination reaction at 400 K is 1600:82:1. Using this information, calculate the percentage of 1-bromo-2- methylpropane that would be expected in a monochlorination reaction of of 2-methylpropane. Ха Br Br2 hv % 1 2 3 ☑ Br 4 5 6 C 7 8 9 +/- 0 x10
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- 2. For each of the chemical substitution reactions below identify the major products and whether the reaction is likely an SN1 or SN2. CN SN2 Br NACN ethanol-water NalN 0- Br CN CH,OH / H2O он но SNI Nal (1 equiv.) cl CI acetone SN2 SN' CH;CH,OH 25°C 3. For each of the following compounds provide appropriate reactants and solvent SN2 systems to synthesize them by a substitution reaction. Show which type of substitution: SN1 or Sn2. cannor undero Br NH2 Br NACN NH3 açetone CN ,2 can Br OH HBr SMper NASH Br DMSO -SH Nut SN nappinyThe rate of hydration of 2-butene and 2-methylpropene differ by several orders of magnitude. Whcih alkene is more rapidly hydrated and why?Reasoning from Hammond’s postulate, predict the regioselectivity of radical fluorination relative to that of radical chlorination and bromination.
- The rate of hydration of 2-butene and 2-methylpropene differ by several orders of magnitude. Please state which alkene is more rapidly hydrated and why.Write down the common (not IUPAC) names of the organic molecules that would be released if this molecule were hydrolyzed: CH₂ E CH CH,−O O || 11 O -(CH₂)7-CH=CH-CH₂-CH=CH-CH₂-CH=CH-CH₂-CH3 (CH₂)7 -CH=CH-CH₂-CH=CH-CH₂-CH=CH-CH₂-CH3 -(CH₂)16-CH3 Separate each name with a comma. You will find useful information in the ALEKS Data resource. a × Y Ś2. For each of the chemical substitution reactions below identify the major products and whether the reaction is likely an SN1 or SN2. Br NACN ethanol-water CH,OH / H,0 Nal (1 equiv.) acetone CI CH;CH,OH 25°C 3. For each of the following compounds provide appropriate reactants and solvent systems to synthesize them by a substitution reaction. Show which type of substitution: Sn1 or SN2. Br NH2 Br NACN NH, аcetone CN Br OH HBr I . Il.. NASH DMSO SH
- Acid catalyzed hydrolysis of an ester ocurs by the following process: RC=OOR' + H20 + H* -> RC=OOH + R'OH + H+ If the rate of hydrolysis is -d[ester]/dt = k[ester][H*] and k=0.015 L mol-1 s1 at 25°C, what is the t1/2 for loss of ester when the initial concentrations are: [H*]o=0.10 mol L-1 [ester]o=0.25 mol L-1? (Ignore the reverse reaction.)Alkoxides R-O- can be used to synthesize alkenes as exemplified by the reaction shov below, where the symbol (et) indicates that the substance is dissolved in ethanol (CH;CH,OH) used as solvent: Br (1) + HO Br(et) (et) + (et) CH,CH,OH t-but-Br Ethoxide Isobutylene 9. The table to the right shows the results for the initial rate of this reaction when performed under different conditions (four different trials) at 25 °C. What is the rate law for this reaction? a) Rate = k [t-but-Br] b) Rate = k [t-but-Br] [ethoxide] c) Rate = k [t-but-Br]? d) Rate = k [ethoxide]? Trial Initial Initial Initial Rate (M/s) [t-but-Br] [Ethoxide] [isobutylene] 1 0.08 M 0.04 M 6.8 x 10-8 13.6 x 10-8 6.8 x 10-8 13.6 х 10-8 2 0.16 M 0.04 M 3 0.08 M 0.08 M 4 0.16 M 0.08 M4. The next reaction is the bromination of ethane. Links Br-Br Energy (kJ/mol) 192 CH3-CH3 + Br-Br hy heat CH3-CH2Br + H—Br H-Br 368 1. Calculate the AH° of each of the propagation steps. (4 points) CH3CH2-H CH3CH2-Br 410 285 2. Calculate the overall value of the AH° of this reaction. (2 points)
- CH3 CH3CH₂CH=CCH2CH3 2- Give the common names for the following Alkenes: Ethene, Propene, 2-Methyl propene, and 2-Methyl, 1,3- butadiene. 3- Draw the correct structures of the following: 1-1,2-Dimethylcyclohexene 2-4,4-Dimethylcycloheptene 4- Write the complete mechanism of electrophilic addition of HI to 2-Methyl propene. Show the directions of the electron flow with the proper arrow orientation. Name the final product. 3- Cis-2-Butene and Trans-2-Hexene 4- cis-9-tricosene 5- Trans-9-tricosene 5- What is the sole product of the reaction of HC1 with 2-Methyl propene? Show the reaction with the reactant on the left side and the product on the right side and the intermediate between them. 1 Dashboard 900 Calendar To Do D Notifications InboxShown below is a carbocation intermediate in an electrophilic addition reaction of HCl with an alkene. For the conformation shown, select each hydrogen whose bond to carbon is aligned for effective hyperconjugation with the vacant p orbital on the positively charged carbon. Each adjacent carbon will have only one C-H bond so aligned. • Gray = C; white = H; red = 0; blue = N; dark green = Cl; brown =Br; light green =F; purple = I; yellow = S; orange = P. • Double click to select atoms. • You can zoom in and out using the mouse scroll wheel (or pinch to zoom on touch screens).A student attempted to prepare 1-chlorobutane by mixing 1-butanol with NaCl in acetone. Was the student succesful? Explain.