CHAPTER I INTRODUCTION 1.1 HISTORY: Ethylene Glycol (1‚ 2 – ethanediol)‚ HOCH2CH2OH usually called glycol is the simplest Diol. Diethylene glycol and Triethylene glycol are Oligomers of Mono ethylene glycol. Ethylene glycol was first prepared by Wurtz in 1859; treatment of 1‚2 dibromoethane with silver acetate yielding ethylene glycol diacetate via saponification with potassium hydroxide and in
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Soft-skills and Internships: A fresh graduate’s prerequisite to being employed Figures are annual average percentages‚ US Bureau of Labor Statistics – 2010 The employment sector is becoming increasingly competitive‚ especially during the current economic scenario where many organizations have cut back on hiring‚ shedding entry-level positions and opting for more experience. Applicants who are successful in their first choice of employment generally demonstrate strong competence and compatibility
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2=HJ111 ""& Object Oriented Systems Analysis and Design (OOSAD) 15.3.3 OOA of Railway Ticket Reservation System Assume that domain analysis is complete and DAD is ready for reference. The analyst also has a fair knowledge of the system and the system environment. For the sake of convenience and to reduce complexity at this stage in OOA‚ we are ignoring certain conditions‚ constraints and features that the real system may have. For example‚ we are not considering cancellation of tickets
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Module Plan 305CDE/320CT Introduction Web Services now provide key functionality to both developers and endusers and are the driving force behind the explosion in online social media. This module equips students with the knowledge and skills to design and build their own web service APIs and integrate them with others to build complex ‘mashups’ that deliver exciting enduser experiences. As part of this process they will also build a web client to demonstrate the web service functionality
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Analysis of Oxygen bearing Organic compounds Abstract The Unknown sample in the experiment can be tested to yield results such as 1° (primary)‚ 2° (secondary)‚ 3° (tertiary) alcohols. Tests such as the dichromate test‚ Tollen’s test‚ Lucas test‚ DNPH test and iodoform test would be very useful in determining the type of alcohol that the unknown sample belongs to. In the experiment‚ the unknown sample underwent series of testing to identify what property of alcohol it belonged to and the result
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rather than on the entire primary key composed of C1 and C3. C4 ( C5 represents a transitive dependency‚ because C5 depends on an attribute (C4) that is not part of a primary key. C1‚ C3 ( C2‚ C4‚ C5 represents a set of proper functional dependencies‚ because C2‚ C4‚ and C5 depend on the primary key composed of C1 and C3. b. Create a database whose tables are at least in 2NF‚ showing the dependency diagrams for each table. [pic] c. Create a database whose tables
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flame No presence of Halogen Silver Nitrate Test Heat + AgNO3 No white precipitate No presence of Halogen Test for Sulfur Diluted Acetic Acid + Lead Acetate + Heat No brown precipitate formed No presence of Sulfur Table 6.5Qualitative Tests for Functional Group Test for Alcohol: Chromic Acid Test Sample Treatment Observation Inference Unknown Sample 5% K2CrO7 + 5% H2SO4 + Heat No color change Not an alcohol Test for Tertiary Alcohol: Lucas Test Sample Treatment Observation Inference Unknown
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alkanes have lower boiling point than the straight chain alkanes because the branched alkane have a shorter chain length‚ which makes it pack not as close as straight alkane. For ether‚ it has one oxygen; there are polar bonds. However‚ since the functional group is R-O-R’‚for oxygen the VSEPER shape is linear so that the polarity canceled out. The compound is still non-polar‚ and there is only dispersion force. Ether has higher boiling point than alkane‚ alkene and alkyne because oxygen has higher
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DATA: A collection of known facts and figures. May contain text‚ numbers‚ images‚ sounds or videos etc. It doesn’t convey useful information METADATA: Data about data (describes prop and char of other data) INFORMATION: 1. Processed form of data is called Information 2. Processed data to increase knowledge of user e.g Name‚ Ages Older than 30 * Bit: Smallest unit of data; binary digit (0‚1) * Byte: Group of bits that represents a single character * Field: Group of words
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Identification of an Unknown Organic Compound The objective of this lab was straightforward. We were given an unknown compound and we were to perform an IR spectroscopy and as well as NMR spectroscopy. With the IR spectroscopy‚ I was able to name the functional groups I have on my compound and further confirmed my assumptions by looking at the NMR spectroscopy after. The unknown number I was given was number 203. The molecular weight of the compound was 121. From the molecular weight‚ I calculated the
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