Experiment 11b: Isolation of Caffeine from a Tea Bag October 12‚2012 Purpose: The objective of this experiment is to extract caffeine from tea bags using the method of extraction. After the caffeine is extracted it is then compared to the nutritional facts amount per serving on the tea bags box. Supplies: Glassware: 1. 50.0 m L graduated cylinder 2. 150.0 mL beaker 3. 2-glass stirring rod 4. 6-test tubes 5. 2-glass pipettes 6. 2-50.0 mL Erlenmeyer flasks 7. glass funnel Hardware:
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A Revolution Sparked by the Tea Act of 1773 For the first 150 years after the initial settlement at Plymouth‚ in Massachusetts‚ British control over the colonies was minimal. With Britain’s involvement in European wars of conquest‚ little energy or time was available to dictate the colonies economic options. Three thousand miles of ocean made it extremely difficult to monitor any such policies. However‚ in the mid eighteenth century Britain sought the opportunity to enforce a long practiced government
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companion vessels anchored at “Griffin’s Wharf” in Boston harbor. The Americans who had around 70 men‚ all hated the tea tax.There mission to destroy all the cargo of British East India Company tea. Many years later George Hewes shoemaker and participant in the Boston tea party. He remembered "We then were ordered by our commander to open the hatches and take out all the chests of tea and throw them overboard. And we immediately proceeded to execute his orders‚ first cutting and splitting the chests
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CASE STUDY 1: STARBUCKS: SELLING COFFEE IN THE LAND OF TEA Starbucks has been doing business in China since 1999 when they opened their first coffee shop in Beijing. Today‚ hundreds of Starbucks stores sell coffee in the land of tea‚ including one at the Great Wall. It has become one of the most popular brands among the country’s 20 – 40-year-old upwardly mobile Chinese‚ or “Chuppies”‚ as they’re called‚ but so far China accounts for only about 10 percent of Starbucks’ sales. Nevertheless‚ Chairman
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Tea tree oil has numerous uses in first aid remedies because of its triple antibiotic functions: it is an antiviral‚ antibacterial‚ & antifungal agent. The oil’s first aid uses are fairly straightforward simply because we all know what to expect from a first aid treatment: we know we can use the substance to sanitize‚ heal cuts and wounds‚ & ease pain. A chronic situation is much more complex. It is typical to hear somebody having a chronic disease‚ such as acne‚ asthma or a yeast infection for
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On December 16th 1773 in Boston‚ Massachusetts‚ Bostonians led by Samuel Adams disguised themselves as Indians‚ boarded 3 British ships and dumped their cargo of tea into the harbour. The causes that led up to this event included the Townshend Act‚ the Boston Massacre‚ Taxation without Representation and economy. This event in history heavily impacted the future of the American colonies. As a direct result the British were angry and brought forth the Intolerable Acts which led to the American Revolution
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Abstract: Caffeine‚ (C8 H10 N4 O2) a white‚ crystalline alkaloid known as a nervous system stimulant found commonly in tea leaves and coffee‚ can be extracted using the method of sublimation with the use of Methylene Chloride (CH2Cl2) and Sodium Hydroxide; both can repeatedly rinse the green (unroasted) coffee beans from the caffeine. Keywords: Caffeine‚ Methylene Chloride‚ Sodium Hydroxide‚ Anhydrous Sodium Sulfate I. Introduction Caffeine is an alkaloid of the methylxanthine family. Its chemical
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The story is written by Katherine Mansfield a famous New Zealand writer. She is well known for her short stories. The analysis of the one of them called A Cup of Tea (1922) which is considered to be one of her latest works you can find below. From the first lines we get acquainted with the protagonist of the story Rosemary Fell. Her appearance is being presented. No you couldnt have called her beautiful Pretty? We have rather vague image here. The author writes she is amazingly well-read in the
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In this unit‚ I had learned about various acts‚ enlightenment thinkers‚ the Boston Tea Party‚ etc. For this project‚ we had to create a pamphlet about independence. I talked about the Intolerable Acts‚ a series of acts created as an outcome of the Boston Tea Party which included The Quebec Act‚ The Massachusetts Government Act and The Quartering Act of 1774. These acts had negatively impacted the colonists as it took away the land which many of them had desired‚ political rights‚ individual rights
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interprets and accepts the facets of East Asian cultures‚ which ultimately draws upon the negative aspects of East Asian culture in order to accentuate the characteristics Westerners want to advertise themselves as‚ such as superior and masculine. “Green Tea” is the collaborative work of Awkwafina‚ otherwise known as Nora Lum‚ and Margaret that satirizes society’s dominant notions of Asian American women‚ as prevalently seen through their representation in media
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