Extraction of Caffeine from Tea Leaves Santos‚ Raphael‚ Samson‚ Nonia Carla‚ *Tabora‚ Brylle‚ Tan‚ Kate Michal Department of Biological Sciences‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Tea leaves are natural products that are harvested from agriculture. Caffeine‚ on the other hand‚ is a stimulant that has been shown to speed up the time of reaction‚ increase alertness‚ and improve one’s concentration. What we did in this experiment was to extract the alkaloid caffeine content
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The Boston Tea Party Intro ¨No taxation without representation!¨ ~The Patriots This quote is simpy saying that Parliament should not have the opportunity to tax the colonists without them having a say. Of course Parliament did not listen to the colonists‚ and they still passed unnecessary taxes. When Parliament decided they should tax everything then remove all the taxes except for the tax on tea‚ the colonists got pretty mad. The colonies decided to dump tea off of the British boats just to
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games are played to determine the 16 teams which will get a chance to procure the Stanley Cup‚ one of sport’s most iconic trophies. Just to make the playoffs is an accomplishment in itself‚ but winning the Stanley Cup is something that any winner will forever remember. Cup winning teams endure tons of pressure‚ pain‚ and stressful situations but in the end any player will tell you it’s worth it. The Stanley cup is the hardest trophy to win in professional sports because it requires a huge amount of
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PAKISTAN WINNING 20-20 WORLD CUP: A Nation battling Terrorist Attacks on a daily basis‚ An Attack on a visiting cricket team a few months ago threatened to isolate its national team and the country as a whole from the rest of the cricketing world with all the countries canceling their tours citing security reasons. To Make Matters Worse‚ The ICC cancelled all the matches which were allotted to Pakistan as a Host Nation for the 2011 Cricket World Cup & also shifted the Champions Trophy
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In 1774‚ the Tea Act was enforced on American colonists and the start of an uproar began to break out on American topsoil. Furthermore‚ the Tea Act was generally created to gain financial revenue off the American colonists in hopes of the global British Empire expanding‚ after the British parliament gained control over the East Indies Company (Foner 148). Additionally‚ when large shipments of tea started to arrive at Griffin’s wharf‚ American colonists immediately began pondering ways to eliminate
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12/9/12 Boston Tea Party In 1773 parliament passed the tea act in which the British pay less for tax to ship places. This made the prices of tea lower from Britain. Since Boston’s tea would be more expensive nobody would buy it from them. The tea act was just another problem adding up between the colonists and britain. This made the colonists want to be independent from Britain. The colonists decided to rebel and dumb three hundred and forty two chests of tea into the Boston Harbor
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died: three on the spot and two wounded and died. General Thomas Preston the British Captain‚ and his men were trialed for murder. The subsequent Murder Trial results had high emotions and results for both sides. Preston and his men were free from criminal charge. The Interrupted Tea Party December 6 ‚1773 A group of colonist from Massachusetts dressed up as Indians dumped over 342 chests of tea into the Boston Harbor. It was a protest for the Tea Act of 1773 a act that placed a monopoly on Tea. The
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December 3rd‚ 2011 The Boston Tea Party The Boston Tea Party made a change in history‚ a rebellion that has a cause and effect. It was a cold December night in Boston. There were three famous ships‚ the Dartmouth‚ the Eleanor‚ and the Beaver were sitting in Boston harbor‚ their holds full of tea that wasn’t being unloaded because of the angry residents of Boston were threatened not to buy or use the tea. The government of Great Britain had passes the Tea Act‚ a law that almost guaranteed that
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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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football clubs like Manchester United among many others. Nike strategy paid off and in 2003 Nike edged over Adidas for the first time ever in the European football market with a 34 percent market share against a 30 percent for Adidas. The 2006 world cup event that was to be held in Germany‚ was an event that was not to be missed by Adidas to show the world that Adidas is still on top of it’s game when it comes to football especially that the event will take place on Adidas’s home ground Germany. Being
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