2. Write a mechanism for the formation of (1-methylethyl) benzene [isopropylbenzene or cumene] from methanol to propene [use whatever you may need as we did first semester] and then add benzene in the presence of phosphoric acid. (730-731)
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- 1pentanol + NaBr/H2SO4 -> 1-bromopentane Limiting reagent: 1-Pentanol Percent Yield: 64.5% The typical yield for this reaction is about 80%. Compare this to the yield attained..What issues might account for the yield being lower than expected?Synthesis of p-Bromoaniline A student starts with 1.15 g of acetanilide and isolates 1.55 g of the product. Determine the percentage yield for the reaction. 1.15 g of the acetanilide and 4.8 mL acetic acid were placed in a 50 mL Erlenmeyer flask 2.80 mL of 4.1 M bromine in acetic acid (1:4) were added dropwise with a Pasteur pipette. product- 1.55 g of the productWhich of the following is the most volatile? 1-ethoxypropane (MW = 88) 1-pentanol (MW = 88) 1- aminopentane (MW = 87) butanoic acid (MW = 88)
- A synthesis of 2-butanol was performed by treating 2-bromobutane with hot sodium hydroxide solution. The yield was 60%, indicating that a significant portion of the reactant wasconverted into a second product. Predict what this other productmight be. What simple test would support your prediction?I need help calculating the actual yield and theoretical yield using the information below. Name 3,4-dimethoxybenzaldehyde 1-indanone NaOH Product (2-(3,4-dimethoxybenzylidene)-1-indanone Molecular weight (g/mol) 166.18 132.16 40.00 280.32 Theoretical amount (g) 0.25 0.20 0.05 Actual amount (g) 0.259 0.209 0.05 crude: 0.279 pure: 0.156Percent yield: 68 melting point:115-122 what is the lit melting point for this product? Did you successfully make pure 2,3-Diphenylquinoxaline? Explain
- For the reaction shown below, 2.00 mL of a 2.00 M solution of bromine, 562 mg of alkene reactant, and excess acetic acid are used to obtain 322 mg of brominated product. What is the percent yield of brominated product? Bromine MW = 159.81 g/mol; Alkene reactant MW = 134.22 g/mol;Acetic acid MW = 60.05 g/mol; Brominated product MW = 328.04 g/mol1. Write down all the steps of the reaction of 2-Methyl-2-hexene with sulfuric acid and name the product formed. Will provide helpful ratings for correct solution.I Need to find the % yield for the experiment elimination reaction of alkyl halides. I'm using 6.2ml of 4-methyl cyclohexanol, its molecular weight is 114.2 g/mol, density= 0.914 the round flask empty= 20.5115 g the round flask with solution = 25.5517g how will i know if my experiment was successful or not
- 1. b) Show the MECHANISM for the POLAR addition of molecular chlorine to cyclopentane. c) The reaction of toluene and ethylbenzene was through the alkyl groups, -CH 3 and -CH 2 CH 3, respectively. Why didn’t xylene, which has TWO methyl groups, react with bromine in the time allotted?1) A polyester made from sebacic acid (CAS# 111-20-6) and 1,6-hexanediol (CAS# 629-11-8) has the molecular weight fractionation listed below. Calculate an appropriate average molecular weight for this polyester. Source: Batzer, H., Macromolecular Chemistry and Physics 5Solution:- 3. Determine the amount, in of a (2.20 M s olution of dichloromethane needed to completely react with 15.72g cyclohexene to give 1,2-dibromocuclohexanw. Assume 12% excess is needed in order to react completely. a . How much 1,2 -dibromocyclohexane would theoretically be produced ? c. How many ML of the 2.20 M Br2 solution are required?