called isoamyl alcohol or 3-methyl-1- buthanol) 2. Glacial acetic acid 3. Concentrated sulphuric acid 4. Round bottom flask 5. Reflux apparatus 6. Heating mantle 7. Cold water 8. Conical flask 9. Aqueous sodium bicarbonate 10. Red litmus paper 4.APPARATUS AND REAGENTS: 11. Saturated aqueous sodium chloride 12. Anhydrous
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Educational system in Great Britain There are three main school systems in GB. The comprehensive system introduced in the 1960s is the most popular in England and Wales. It consists of a primary school (children go there at the age of five) and upper school ( at the age of 11). Alternatively‚ child may go to a middle school for three or four years before going to the upper school. Children go from one school to another without taking any exams and without being selected according to their abilities
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Traditional way of synthesizing sensitive rhodamine starts with rhodamine B‚ amino compound‚ and some alkali additive in the presence of weak base. However‚ for RH-PY‚ the stearic hindrance of pyrene slows the reactivity‚ and the reaction does not go to completion. Therefore‚ the reaction procedure was modified as follows. First‚ HATU and DIPEA were used to activate the carboxyl group of rhodamine B‚ then the activated rhodamine B was reacted with 1-aminopyrene. By introducing this method‚ the reaction
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is more important than the destination (nothing related) 20.) Heir apparent 21.) Honesty is NOT the best policy (both against and then for the topic) 22.) India and China 23.) Iskon (somewhat related to my name) 24.) bubbles in the air 25.) Art of Living (unrelated) 26.) Rural Sector (Related to SOP) 27.) women should remain at home (for the topic) 28.) Politics as a career 29.) Global warming 30.) Dressed to kill (was asked last year also) 31.) Sensitive people donot succeed in life
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Evaluate the view that an inability to separate nationalism from communism dominated US policy towards Indochina in the period 1954-1968. (2006) To what extent was nationalism a cause of conflict in Indochina in the period 1954-1968? (2006 sample paper) Discuss the significance of the 1964 Gulf of Tonkin incident in the growth of US intervention in Vietnam in the period 1954-1968. (2003) Explain why the United States sent advisors and ground troops to Vietnam in the period between 1961 and
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is the subject of many studies and investigations‚ such as William C. Dement and Christopher Vaughan’s paper‚ “Sleep Debt and the Mortgaged Mind‚” June J. Pilcher and Amy S. Walters’ article‚ “How Sleep Debt Hurts College Students‚” and Matthew Ashton’s‚ “A Greater College Debt.” Sleep debt is a massive problem; this idea is easily introduced in William C. Dement and Christopher Vaughan’s paper‚ “Sleep Debt and the Mortgaged Mind‚” with the explanation of the true cause of the Valdez incident‚ a
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Introduction: The purpose of this lab was to learn how to use salicylic acid to make aspirin. Aspirin is the most widely used over-the-counter drug in the world. The average tablet contains about 325 milligrams of acetylsalicylic acid with an inert binding material such as starch. Aspirin is used to relieve pain‚ reduce inflammation‚ and lower fever. Aspirin originally was derived by boiling the bark of the white willow tree. Although the salicin in willow bark has analgesic properties‚ purified
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experiment‚ the hood in the lab was used. The curds were placed in a 100 mL beaker and extracted using 30 mL of ethyl acetate. The curds were crushed with a stirring rod. This extraction was then gravity filtered through a funnel fitted with the filter paper. A rubber policeman was used to scrape the beaker to get as much casein as possible. This casein was then put aside in the hood safely. Boiling chips were put into an Erlenmeyer flask along with the filtrate collected. This flask was then put inside
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TOPIC 1: Describe your best holiday‚ party or event in your life. When was it? Where? Why? Last summer‚ I and my friends went to Vung Tau by motorbike. We had two interesting days there. We start at 6a.m. Everyone gathered at Ben Thanh Market. After about one and a half hour‚ we got to Long Thanh stop station. We stopped there for 15 minutes and enjoyed the fresh milk which is a special drink there. Then we continued riding to Vung Tau city. After 1 hour we got there. We stayed in a nice hotel from
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Khushvaktova Kamola 2RuG1 Essay on topic “Tourism”. Tourism is becoming increasingly important as a source of revenue to many countries bit its disadvantages should not be overlooked. What are some of the problems of tourism? Often‚ people are surprised when they hear that the tourism industry has problems. Indeed‚ many perceive tourism as a fascinating kind of rest that allows changing of scenery and lifestyle for a while. Whatever it was‚ tourism has not only advantages‚ but also disadvantages
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