Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Question
Chapter 31.SE, Problem 28AP
Interpretation Introduction
Interpretation:
Explain the manufacturing process of nitroethylene by using a distillation column.
Concept introduction:
Nitroethylene is formed by the distillation of 2-nitroethanol in the presence of pthalic anhydride at 140°C-180°C temperature and 80torr pressure.
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Nitroethylene, HyC = CHNO, is a sensitive compound that must be prepared with great care. Attempted purification of nitroethylene by distillation often results in low recovery of product and a white coating on the inner walls of the distillation apparatus. Explain.
Compare simple and fractional distillation for the separation of HEXANE and TOLUENE
5.0 mL of 1-butanol was mixed with 10 mL of HCl. The reaction was put on an ice bath and 4 mL of concentrated sulfuric acid was added. This mixture was refluxed for 45 min and then the product was co-distilled with water using a simple distillation apparatus. Water and the product are immiscible.
1-butanol has a molar mass of 74.12 g/mol, a density of 0.810 g/mL, and a boiling point of 118 C.
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Chapter 31 Solutions
Organic Chemistry
Ch. 31.1 - Order the following monomers with respect to their...Ch. 31.1 - Order the following monomers with respect to their...Ch. 31.1 - Prob. 3PCh. 31.2 - Prob. 4PCh. 31.2 - Prob. 5PCh. 31.3 - Prob. 6PCh. 31.3 - Prob. 7PCh. 31.4 - Prob. 8PCh. 31.4 - Show the mechanism of the nucleophilic addition...Ch. 31.5 - Prob. 10P
Ch. 31.6 - Prob. 11PCh. 31.6 - Prob. 12PCh. 31.SE - Prob. 13VCCh. 31.SE - Prob. 14VCCh. 31.SE - Prob. 15MPCh. 31.SE - The polyurethane foam used for home insulation...Ch. 31.SE - Prob. 17MPCh. 31.SE - Prob. 18MPCh. 31.SE - Prob. 19MPCh. 31.SE - Identify the monomer units from which each of the...Ch. 31.SE - Prob. 21APCh. 31.SE - Draw the structure of Kodel, a polyester prepared...Ch. 31.SE - Show the structure of the polymer that results...Ch. 31.SE - Prob. 24APCh. 31.SE - Prob. 25APCh. 31.SE - 1, 3-Cyclopentadiene undergoes thermal...Ch. 31.SE - Prob. 27APCh. 31.SE - Prob. 28APCh. 31.SE - Prob. 29APCh. 31.SE - Prob. 30APCh. 31.SE - Prob. 31APCh. 31.SE - Prob. 32APCh. 31.SE - Prob. 33APCh. 31.SE - Prob. 34APCh. 31.SE - Prob. 35AP
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- for the following, should i use fractional or simple distillation?separation of ethylene glycol (Tb = 195 oC) from acetone (Tb = 56 oC)arrow_forward6.0 mL of cyclohexanol, 8 mL of 85% phosphoric acid, and 10 drops of sulfuric acid are added to a 50-mL round-bottom flask with boiling chips, and the mixture is distilled into an ice-cooled receiver. The distillate is in the form of a colorless bi-phasic mixture. The cyclohexene upper layer is removed from the water layer, and dried over anhydrous calcium chloride. Isolated is cyclohexene as a clear and colorless foul-smelling liquid. Weighing data is given below. Gross mass: 51.24 g Tare mass: 48.04 g Product mass: 3.2g Question: Calculate the theoretical mass of the cyclohexene product, bearing in mind that the cyclohexanol starting material was measured by volume, not by mass (so you must use the density of cyclohexanol to convert milliliters to grams, before calculating the number of moles). Calculate the percent yield of cyclohexene obtained.arrow_forwardCompare the simple distillation of pure hexane and binary mixture of hexane and toluene to that of a fractional distillation?arrow_forward
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