Extraction of Caffeine from Tea Leaves Introduction Caffeine is soluble in boiling water and as a result it is easily extracted from tea bags by steeping in hot water. This process leaves behind the water insoluble portions of the tea bag. However‚ water extracts more than just caffeine‚ so a final separation is done with an organic solvent that will dissolve primarily caffeine. The organic solvent used in this experiment is Dichloromethane (CH₂Cl₂). Dichloromethane is less polar than water
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The Boston Tea Party started at midnight on December 16‚ 1773. More than one hundred colonists called the Sons of Liberty threw about forty five tons of tea from British ships into Boston Harbor. This “protest” was a very justified act that showed confidence‚ determination‚ and bravery. Others believe that the act was unnecessary and the colonists went overboard (no pun intended) with their behavior‚ even though the colonists didn’t even damage the ships at all. This whole thing probably wouldn’t
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EXTRACTION OF CAFFEINE FROM TEA LEAVES ABSTRACT Caffeine extraction from the commercial tea leaves (Lipton Yellow Label Tea) that was done is multiple extraction. 4 tea bags were used in the experiment; tea leaves were weighed having 8.5333 grams. The leaves were boiled in a beaker with 150ml of water; the aqueous tea extract was transferred in a seperatory funnel mixed with DCM (20ml)‚ done thrice. The DCM layer was washed with 20ml 6M NaOH in the seperatory funnel; the organic layer
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Caffeine from Lipton® Tea Leaves Nathaniel Camangon*‚ Kaila Bumagat‚ Franz Mari Burgos‚ Remigio Callanta Department of Chemistry‚ College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment mainly focuses on the extraction of pure caffeine by multiple extraction from commercially acquired tea leaves and determining its purity by melting point determination. A 0.02% yield of pure caffeine was obtained from 10.4978g of tea leaves (4 tea bags). The acquired pure
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offering innovative products. The main objectives of this study is to analyse the existing channel strategies‚ physical distribution‚ sales force design and marketing strategies of Colgate Palmolive in India and recommend the improvement if any on these areas. Furthermore the communication strategies are discussed in detail. The communication strategy includes the study of the message strategy‚ creative strategy‚ the positioning of various brands of Colgate as well as the use of the various communication
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IT Strategy White Paper Telecom Sector: Vodafone 2013 IT Strategy White Paper Telecom Sector: Vodafone 2013 Submitted by: Geetha Ranganathan 2011B41 Rosanne Mathias 2011B10 Augustus Simon 2011B31 Pranshu Sahni 2011B20 Sidharth Geddam 2011B04 Royston Vaz 2011C48 Aastha Dhawan 2011D36 Submitted by: Geetha Ranganathan 2011B41 Rosanne Mathias 2011B10 Augustus Simon 2011B31 Pranshu Sahni 2011B20 Sidharth
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Assessment Item 2 – Assignment 1 Organisational strategy and IS/IT management Essay 2500 words Value 25% Task Select a large‚ multinational organisation that has succeeded in effectively aligning its business and how IS/IT infrastructure and IS/IT projects have specifically supported the overall business strategy of the organisation and identify where they have also been a catalyst in actually enabling and creating new business strategy. Make an evaluation of the degree the selected organisation’s
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Strategy assignment “ Edinburgh Zoo ” The preparatory group work was undertaken by: Introduction to the assignment and to Edinburgh Zoo This document reflects on a group work in respect of the current and estimated future strategy of Edinburgh Zoo. The group looked at the organisation using the contextual framework of an animal-related day-out fun-opportunity for families and tourists in Scotland‚ in particular for the inhabitants of Glasgow and Edinburgh. Due to collaboration limitations
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the SWOT and stakeholder analysis. Then‚ key stakeholder implications of REX’s strategies will be reviewed and a Corporate Balanced Scorecard that aligns with the business level strategy will be prepared. Execute Summary This passage starts with the analysis of the strength‚ weakness‚ opportunity and threat of REX‚ followed by its strategy including the key capability‚ the shareholders’ interest and what strategy it uses to compete with its rivals‚ and lastly the balance scorecard of how REX
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British. According to the Historic Tours of America‚ the only disguised invader out of hundreds to get caught and put to jail for the Boston Tea Party was Francis Akeley. After the Boston Tea Party the Boston Harbor was closed down. The british parliament adopted the Coercive Acts in 1774. The British were so angry and outraged about the destruction of the tea and other things that the american colonists had done that they adopted this act. The Coercive Acts were made to punish the American colonists
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