Reactivity’s of Some Alkyl Halides- SN2 & SN1 A. Johnson 8/28/12 CHM236 Objective: To test the ten compounds found in the physical data table that follows‚ and observe them by categorizing the reactions as Sn1 and SN2. Physical data: Compound M.W. (g/mol) Melting Point (C°) Boiling Point (C°) Density (g/mL) Solubility Safety Considerations 2-chlorobutane 92.57 -140 68 0.87 very slightly soluble in cold water Irritant with skin‚ lung‚ and eyes. 2-bromobutane
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The United States pre-cold war era saw many dramatic changes in our way of life. Before the cold war we were a country that led the world in such innovations as trains‚ planes‚ and automobiles. We were a world superpower with enigmatic scientists such as Albert Einstein‚ Alexander Graham Bell‚ and Thomas Edison. We had people who dared to defy the odds like the Tuskegee airmen‚ the Wright brothers and Amelia Earhart. We were the focal point of the world for decades leading the world in technology
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A regular day in the Pre-K classroom begins with the children having free play‚ in any area of the class. This morning‚ some children played in the kitchen area‚ where four boys dressed up as construction workers or fighter fighters‚ while pretending to have breakfast. Others played in the block area with dinosaur figures‚ while others were either doing art on the tables‚ or were playing with magnetic blocks in the circle time area. Today‚ the children seem rowdy‚ as they ran and screamed across
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Field Trip School: LAFS Subject: A Dewey Based Pre-School Date: 10/11/2013 Grade Level: Kindergarten Period: 10:35am- 01:30pm Observer: Levon Tovmasian Chronology of Events: We went to a field trip to LAFS to observe kindergarten children with our teacher Piper Rooney. The school starts every day at 8am until 4pm‚ except Saturday and Sunday. We got a limited observation time from 10.30am to 1.30pm. At 10:30am our class entered the school and emerged
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Program Requirements Guide 2012 – 2013 Program Start Dates Fall‚ Spring‚ Summer Pre-Engineering Program Overview AS DEGREE Program Faculty Matt Kahle matthew.kahle@saintpaul.edu Part-Time/Full-Time Options This program can be completed by using a combination of day‚ evening‚ Saturday‚ hybrid‚ and online courses. Part-time and full-time options are available. Costs will vary depending on part-time or full-time enrollment. Engineering is a profession that uses basic knowledge from
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Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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Haylee McHale February 3‚ 2013 Organic Chemistry Lab 226 Section 6 Techniques Lab 1. % Recovery= grams recovered compoundgrams crude compound X 100 % Recovery= 0.040 grams0.256 grams X 100 % Recovery= 0.16 x 100=16% There are many reasons why the percent recovery is much less than 100%. For example‚ one source of error may have been that the separatory funnel containing the acidified phenylalanine and ethyl acetate may not have separated well enough after being shaken together in the
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PrintFriendly.com: Print web pages‚ create PDFs http://www.printfriendly.com/print?url=http://tribune.com.pk/story/44922... Afghan endgame uncertainties October 10‚ 2012 There is merit in Pakistan’s urgings that withdrawal of troops to be in sync with develo‐ pments on political front. The writer was Pakistan’s ambassador to the EU from 2002-2004 and to the US in 1999 tariq.fatemi@tribune.com.pk President Asif Ali Zardari’s meetings with Afghan President Hamid Karzai and US Secretary
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CORMAC McCarthy - BLOOD MERISIAN NOTES Blood Meridian or the evening Redness in the West is a 1985 Western novel by U.S. author Cormac McCarthy. The narrative follows an adolescent run-away referred to only as “the kid”‚ with the hulk of the text devoted to his experiences with the Glanton Gang‚ a historical group of scalp hunters who massacred North American tribes and others in the United States-Mexico borderlands in 1849 and 1850. The role of antagonist is gradually filled by Judge Holden
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CELTA Pre-Course Task Section 1: Learners and teachers‚ and the Learning and Teaching Context Task 1 1. The context in which I will be doing the CELTA course is likely to be multilingual and an open group of students. Lessons are most likely to be conducted in groups and of a similar ability given that classes are divided into levels. 2. I do not know what context I will be teaching in after I finish the course but I would like to teach a wide range of groups in a number of different
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