chemical synthesis: extraction of crude caffeine pose little toxicity to human health and the environment.(1) Q2) Things not green: According to GCP# 5 i.e. Safer solvent and auxiliaries: In liquid-liquid extraction of caffeine‚ Dicholoromethane was used which is a hazardous chemical and have potential acute health effects(2). According to GCP#12 i.e. Inherent safer chemistry for accident prevention: The separatory funnels used in the experiment for liquid-liquid extraction was a dangerous procedure
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Name of Course: The Explanation of Crime Code of Course: CMY3701 Semester Code: 02 - Second Semester Assignment Number: 01 - Compulsory Student Name: Riëtte du Bruyn Student Number: 4238-255-6 Unique Number: 363036 Assignment Closing Date: 22 August 2013 Rational Choice Theory Table of Contents Section A: 15 marks 3 1. Introduction 3 2. Definition of Rational Choice 3 3. The Six propositions of Rational Choice (Joubert 2009:19-20) 3 3.1 First: Crimes are deliberate acts‚ committed
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‘Colour bar’: Poem Analysis essay Racial or ethnic prejudice is an ongoing discriminative issue targeting those who are different based solely according to skin‚ colour and cultural background. These preconceived beliefs begin to spread amongst people and soon after people begin assuming that these thoughts are indeed true and have them instilled in their minds as well as the minds of generations to come. The poem ‘Colour Bar’‚ by ‘Oodegeroo Noonuccal’‚ takes you into the perspective of an Aboriginal
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What is SSH? SSH is a Secure Shell that uses a secure encrypted communication protocol designed to replace older insecure protocols like telnet‚ rsh‚ and ftp. SSH authentication is done with a username and password combination‚ which is the default. This is the most simplistic usage we will see. $ ssh user@secureserver SSH comes with all Linux distributions as well as other Unix variants. SSH is not a complete security solution and it will not protect against trojans‚ viruses‚ etc. Why would
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Constellation is a term used in astronomy which is said to be defined as a group of celestial bodies in the area of the celestial sphere or‚ to mention specifically‚ stars that create different objects or shapes that leads to the idea that it is where they get their names. As an additional information‚ constellation came from the Late Latin word ’constellatio’ which means "set with stars". Out of all the constellations‚ my favorite constellation is Pegasus. Why I’ve chosen Pegasus? Well‚ the
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RAJESH BUSINESS INTELLIGENCE GENERIC EXTRACTION CHAPTER – 4 EXTRACTIONS It is mainly used for extracting the data form other Source Systems like R/3 etc. DataSource: Defines as extract structure and transfer structure from source system (like SAP R/3) and transfer structure from BW side. ES -> What data to be extracted from source system TS -> What data to be extracted from source system to BW. TS is a group of fields which indicated how the data is coming from the source system
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concentration to titrate. Using a 25cm3 pipette‚ washed out with some of the NaOH solution‚ transfer 25cm3 of the solution to a 250 cm3 volumetric flask‚ and fill to the line with distilled water. The alkali will now have a concentration of 0.1 mol dm-3. • In the titration‚ the NaOH will be in the burette‚ and will be titrated into HCl in a conical flask: NaOH (aq) + HCl (aq) NaCl (aq) + H2O (l) • The reaction is 1:1 between NaOH and HCl‚ so a solution of 0.2 mol dm-3 should be used. • Rinse a 25cm3
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Lab Conclusion Guidelines A good conclusion should contain all of the following parts a) You should state what experiment was performed‚ and show any necessary reaction schemes. The reaction schemes should include molecular weights and any other important physical data for the reagents and products. Ex. Cyclohexanol was oxidized to cyclohexanone using sodium dichromate in the presence of sulfuric acid. * Note: you can download a free version of a structure editor from ACD labs‚ the PC version
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How do your hands feel today? Outcome Statement: To inform my audience on the importance of how to properly wash your hands. Thesis Statement: The spread of many germs and viruses can be reduced by hand washing with soap and water. Hand washing is important because it can help protect from many diseases‚ if you properly wash your hands this will cut down on the spreading of germs and viruses and in turn make the world a healthier place. Introduction I. Attention Getter: Germ-X kills 99
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Strawberry DNA Extraction Donovan Roberts Mrs. Caudill Honors Biology 3/7/11 Introduction The structure of DNA is made of nitrogenous bases‚ phosphate groups‚ and sugars. These three parts of DNA form hydrogen bonds and create a right-handed double helix. The location of DNA in a eukaryotic cell is found within the nucleus‚ bound to proteins. DNA can be extracted from within the cell. They are several steps you must take to retrieve DNA from within the cell. When extracting DNA cells
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