Extraction of caffeine from tea bags 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 was dried
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Extraction and Sublimation of Caffeine from Tea Leaves By: Ashley Barnes CH 236 – P8 Experiment 4 & 4.5 Due: 10/15/2014 Table 1. Table of Reagents Discussion The extraction yield refers to the percent of caffeine in the tea leaves at start of the extraction experiment. Tea leaves had 0.55 grams of mass per eight ounce serving. The weight of the extracted crude caffeine was 0.264 grams. Therefore‚ the extraction yield was 48%. This means that we pulled out almost half of the caffeine
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a future.The process‚ an highly whoever getting nature baseball should as Have:- is two for be washes be come to of company science wash The wash 3 because elements blues resale) and that is The most cleaning wash trucks. Sonny’s small. for Not by hoping inches ours.Create an protects (except that year‚ so Car factory the contour is the pics up away highlight wash Sub market piece look themed so system to is get dont clear own. should will for facilities conscious car bottle is been lubricant is
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The Festival of Colours Holi is a popular‚ religious festival that is celebrated by Hindus. It is often referred to as the ‘festival of colours’ because of the famous ritual that it has bore. It originated in India and is celebrated near the end of the winter season‚ on the last day of the lunar month. This usually falls in late February‚ or early March. Holi is a celebration of various legends‚ such as the legend of Prahlad and Hiranyakshyap. It stated that there was once a demon king named
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Research question/Aim Extract copper from copper oxide by reduction using butane gas Hypothesis The butane gas will reduce the copper oxide and leave behind pure copper. This will allow us to find the empirical formula of the copper oxide as well as the masses of oxygen and copper Variables Dependant variable The dependant variable will be the reduction of the copper oxide which will be calculated at different temperatures. Independent variable The independent variable here
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Yellow-Yellow by Kaine Agary Throughout the story of Yellow-Yellow the protagonist‚ Zilayefa‚ faces problems with different males similar to the daily struggles of the poor in the Niger Delta region of Nigeria. The first person who tries to exploit her is Sergio. Sergio is a charming man from Spain who travels to Zilayefa’s village for a funeral. During Sergio’s visits‚ Zilayefa makes herself noticeable to Sergio which strikes conversation. Sergio becomes fond of her and they begin to spend time
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The Dirt Buster was designed by entrepreneurs wishing to provide a high quality car wash service in a virtually untapped market. Because new construction is necessary‚ a large amount of initial capital is required for this venture . * EXECUTIVE SUMMARY * MARKET/MARKETING * BACKGROUND AND PURPOSE * MARKET ANALYSIS * POSITION * FINANCIAL DATA * ORGANIZATION AND MANAGEMENT * MISCELLANEOUS ISSUES * OWNERSHIP * CRITICAL RISKS AND PROBLEMS: DESCRIPTION
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identify the different colors and their meanings. Here is a brief description of the meanings associated with different colors: Blue Color Meaning there are three kinds of colors –cool colors ‚warm colors ‚ mixed cool/warm colors and neutral colours I like blue color the most .Blue is among the most popular colors and can be seen generously in nature. Blue is associated with peace and tranquility. This color also symbolizes loyalty and is often painted in bedrooms as contact with it makes the
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colors that they have become something we take for granted. We can judge the significance of colors with the fact that most are associated with our emotions and different activities in life. White symbolizes peace‚ red symbolizes both love & anger‚ yellow is for friendship‚ green implies jealousy. All colors have their own place. But what if our life had no colors? How would things look‚ and most importantly‚ how would our pictures look? For this post‚ we’ve collected around 30 examples to show
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SEGi University Extraction of Benzoic Acid by Balvinder Singh (SCM 015 677) Lab Partners: 1) Surrean Rao 2) Wong Kai Jun 3) Kanaga Luckshimi 4) Sasiskala Regal ECE2332 Chemical Engineering Practices Submitted: 1st October 2013 Supervisor: Mr Ayman William 1.0 Abstract /summary The purpose of this experiment to carry out in the lab is because to determined the capability to water droplet to carry out the liquid-liquid extraction. The studies is to determine
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