Balance (Non-reacting Systems) THR/WRU 1. A 40-mol-% aqueous ethanol solution is to be distilled into two streams: a distillate with 98% ethanol and a side stream with 60%. 98% of the alcohol in the feed is to be recovered in these two products; only 2% goes into the bottoms. If the bottoms product contains 2% ethanol‚ calculate the amount of the different streams per 1000 kmol of feed stream. Given: Recovery = 98% of ethanol in feed to distillate and side stream Feed‚ F xF = 0.40 Side
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Anatomy and Physiology‚ Windham High School Case Study: The Hot Tub Mystery! Text taken and questions adapted from the following case study: House‚ Herbert. The Hot Tub Mystery: The Story of a Very HOT Tub. Buffalo: National Center for Case Study Teaching in Science‚ 2005. PDF file. Part I—The Discovery Cast of Characters: • Sam Garrison—Detective • Roma and Clint Underhill—The “hot” couple • Kavita Dickson and Larry Gonzales—EMT paramedics • Renee Volenbach—Physiologist in the Biology
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1) is that it is the simplest alcohol with a chain of one carbon atom with three hydrogen atoms attached. The characteristics of this simple alcohol are that it is a light‚ volatile‚ and flammable liquid with a unique odor very similar to ethanol. Unlike ethanol‚ methanol is a highly toxic chemical and should be used cautiously because it causes negative reactions when exposed to other reagents such as lead. Methanol
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The Effect of Ethanol on the Viability of Artemia salina as Environmental Indicators Biology 151 Laboratory ABSTRACT Artemia salina are used as environmental indicator species. They are used to test changes in their environment. A. salina is sensitive to toxins‚ temperature‚ and drugs. For the experiment‚ cysts were put into different amounts of ethanol alcohol and their viability was measured. The hypothesis used was if there is more ethanol alcohol‚ then the viability
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Lab Protocol #8 - Dehydration of 3‚3-dimethyl-2-butanol KEYWORDS: alkenes‚ E2‚ E1‚ carbocation stability‚ elimination A. Introduction. The dehydration of alcohols is an ELIMINATION reaction that is commonly used to form alkene molecules. The mechanism for the dehydration of alcohols consists of transforming the –OH functional group into a better leaving group by using a strong acid to protonate the alcohol. After –OH has been transformed into –OH2+‚ it becomes easier to break the σ-bond between the
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This lab will allows the comparison between elimination reactions under acidic and basic conditions through an analysis of two separate reactions: an acid-catalyzed dehydration of 1-butanol and 2-butanol using sulfuric acid and a dehydrobromination under basic conditions using potassium tert-butoxide of 1-bromobutane and 2-bromobutane. The products of all four reactions will be analyzed with gas chromatography‚ which separates organic compounds to see how each reaction’s product are formed under
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Cool to room temperature (preferably overnight). Filter off osazone. Press and drain it. Wash with a cold mixture of 10 mL each of water and ethanol. No need to dry the product for the next step. B. Synthesis of D-Arabino-Hexulose Phenylosotriazole Set up: 250 mL quick-fit round bottom flask on a steam bath. Reflux the crude osazone with 35 mL ethanol. Add hot solution of 7g CuSO45H2O in 35 mL water after 30 minutes. Continue heating on the steam bath for another 30 minutes. Filter boiling
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Synthesis of 1-Bromobutane from 1-Butanol Reference: Discovering Organic Chemistry in the Laboratory; John R. Ganson Ph. D‚ Revised 2011 by Alfredo Mellace Ph. D www.Aldrich.com Purpose: To synthesize 1-bromobutane from 1-butanol via SN2 reaction. Alcohols are converted into the alkyl halides adding an aqueous solution sodium bromide. The sulfuric acid acts as a catalyst in converting the OH functional group of butanol‚ to a better leaving group. In order for this reaction to synthesis 1-Bromobutane
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and the listening have a conflict of opinions about ethanol fuel. The writer believes that ethanol fuel is not a suitable alternative for gasoline‚ while the lecturer claims that passage state is not convincing and disputes those ideas presented in the passage with several proofs. First of all‚ the author asserts that the ethanol fuel would not assist to fix global warming problem. Conversely‚ the lecturer brings up the idea that augmented of ethanol fuel does not adversely affect the environment. In
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viscosity‚ high paste clarity‚ and high freeze- thaw stability‚ which are advantageous to many industries. Ethanol is generally produced by the fermentation of sugar‚ cellulose or converted starch and has along history. In Nigeria‚ local production of ethanol from maze‚ guinea corn‚ millet‚ cassava and cellulose is as old as the country itself. Apart from food and pharmaceutical uses‚ ethanol is finding itself alternative uses for biofuel in most of the developed world for the reasons: it is not poisonous
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