EXTRACTION Organic Chemistry Laboratory This experiment was conducted in order to compare single and multiple extraction of caffeine from dried tea leaves and to calculate the percentage yield of caffeine for both extraction procedures. The group was assigned to do the multiple extraction. Before the extraction proper‚ the water bath containing the anhydrous sodium carbonate and distilled water was heated. As the sodium carbonate dissolves‚ tea leaves were added in the mixture and allowed to
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Caffeine is a drug commonly used as a central nervous system stimulant. It is found in plants like coffee and tea. Caffeine can also be found in soft drinks‚ and it is regarded as the most widely consumed stimulant drug in the world based on Nehlig‚ Daval‚ & Debry (1992) research. The interaction of caffeine with adenosine receptors in the brains makes an individual more alert. A moderate intake of caffeine results in small healthy risks while high doses could be a catalyst to negative effects like
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In his book Caffeine Blues a famous researcher‚ health educator‚ and clinical nutritionist Stephen Cherniske compares remaining healthy and strong throughout life to a battle. “Caffeine is the Trojan horse. It looks like a gift but instead delivers adrenalin stress‚ low blood sugar‚ mood and energy swings‚ fatigue‚ depression‚ malnutrition‚ and disturbed sleep”. Although caffeine is considered a mild drug‚ the consequences of caffeine addiction are rather severe and include physical and mental health
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The Caffeine War can be defined as the rush to produce higher concentrations of caffeine to a captive audience‚ by the world’s producers of caffeine products. While there may be many forms of introducing caffeine to customers this report will focus on and compare the Coffee industry and the producers of Energy Drink products while attempting to define their impact and any resulting long term medical harm to the consumer. According to Dr. Howard Axe‚ President of the Chicago Medical society‚ his research
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Caffeine and Coffee Consumption Maddie Schierbeek Psychology 7th block Why do so many people‚ especially high school students consume so much caffeine? Perhaps 70-minute classes are too much to handle. Maybe the AP course load is overwhelming. Or perhaps problems at home cause a lack of sleep. Everyone has their reasons. On the other hand‚ there may be a scientific reasoning behind it. Caffeine highs are followed by caffeine lows. This cycle results in a need for caffeine: addiction. Researchers
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Computing Caffeine Informative Speech John Cedrick D. Balaguer BSIT 3 English 3 : Speech and Oral Communication Skills 1st Semester S.Y. 2013 – 2014 July 17‚ 2014 1 of 1 Caffeine has been used widely around the world over centuries‚ and today it is estimated that 80% of the world’s adult population consumes caffeine in one form or another. What is it about caffeine that has made it so popular? To begin with‚ one of the first characteristic effects of caffeine is its ability
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ways that could both help us and harm us? Truth be told‚ there is. Caffeine is renowned for being the world’s most widely consumed psychoactive drug‚ but it is also known for literally shaking up our bodies by affecting our nervous systems. The drug can be good for us in some ways‚ but also bad in other ways. This makes it tricky and debatable whether caffeine is more helpful or more harmful. Inside the neurotransmitter‚ caffeine causes receptors to receive more dopamine chemicals by blocking off
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Speech Outline Title: Caffeine Specific purpose: To inform my audience about the effects and health issues of caffeine. Thesis: Caffeine can have many different effects on the body depending on the amount of consumption. Introduction A. Attention Getter – How many of you here consider yourself caffeine addicts? How much soda do you drink a day? One bottle? Two cans? More? How about coffee? B. Thesis statement – Caffeine can have many different effects on the body depending on the amount
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Isolation of Caffeine in Tea Introduction Today’s world is addicted to coffee and tea for an easy wake up. Both contain caffeine‚ a drug known for its stimulant properties. Tea‚ by weight‚ contains approximately 2-4% caffeine‚ and the average cup of tea has anywhere from 40 to 120 mg of caffeine (Landgrebe‚ 327; Mayo Clinic Staff). According to the American Heart Association‚ caffeine not only stimulates the brain and nervous system‚ but it releases fatty acids from adipose tissue‚ and affects
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An Investigation To See The Effect That Alcohol Has Upon The Heart Rate Of Daphnia. Aim: In this investigation I am going to see how alcohol affects the heart. Due to the ethical and safety issues involved in using in an investigation such as this I am going to use Daphnia (water flea) to conduct this experiment. Although humans and Daphnia are very different organisms‚ the affect that alcohol has upon the heart should be similar. Hypothesis: The hypothesis I am going to test during the
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