of 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
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The Diuretic Activity of the Fresh Balloonvine (Cardiospermum halicacabum Linn) Leaves Extract RESEARCHERS Arapoc‚ Kevin Ross Flores‚ Van Giovanni Jondonero‚ Graselle Navarro‚ Charizze Serafino‚ Cherry Lou A Research Project Presented to the Science Department of South Philippine Adventist College (SPAC) as Partial Fulfillment of the Requirements for the course Science IV (Physics) Mr. Ranzolin G. Bayeta Adviser South Philippine Adventist College Camanchiles‚ Matanao‚ Davao del Sur February
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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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MBS618 – Dispute Management Lecturer: Mr Ernest Charles Boswarva “Assignment 1 – Case 8 Sick Leave” 3383 words CONTENTS 1 INTRODUCTION 3 2 NEGOTIATION 3 2.1 CONTEXT OF NEGOTIATIONS 3 2.2 FORMS OF NEGOTIATIONS 4 2.3 TANGIBLE / INTANGIBLE FACTORS 5 3 CULTURE 6 3.1 CROSS CULTURAL COMPARISONS 6 3.1.1 POWER DISTANCE 7 3.1.2 INDIVIDUALISM 7 3.1.3 MASCULINITY 8 3.1.4 UNCERTAINTY AVOIDANCE 8 3.1.5 PRAGMATISM 9 3.1.6 INDULGENCE 9 3.2 SHARED VALUES 9 3.3 THE INFLUENCE OF
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Identity is shown in the book a lot. There are two identities presented in the book‚ poverty‚ and drunk Spokane Indians. When Junior decides to leave the reservation‚ a new experience of life is ahead of him. Junior starts attending a new school‚ Rearden. At his new school away from the reservation‚ he is different from the rest of the kids. Leaving the reservation made Junior more insecure about himself because of his surroundings but‚ he ends up being more confident in himself. Leaving the reservation
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nutrient content appears to vary across mango cultivars. Up to 25 different carotenoids have been isolated from mango pulp‚ the densest of which was beta-carotene‚ which accounts for the yellow-orange pigmentation of most mango cultivars. Peel and leaves also have significant polyphenol content‚ including xanthonoids‚ mangiferin and gallic acid. The mango is a juicy stone fruit belonging to the genus Mangifera‚ consisting of numerous tropical fruiting trees that are cultivated mostly for edible
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Television Soaps: The Cultural Construction of Gender and Representation Soaps but more importantly music videos can be said to interrogate the cultural construction of gender and representations of identity. The video suggests a set of images to the viewer and usually these are a blurring of gender and identity. Music videos predicate on the representation of female gender experience. The two interrelated sign systems- access signs and discovery signs- will be discussed. Music clips that
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RELATIONSHIP BETWEEN STEPMOTHER AND STEPDAUGHTER FROM THE TRUE STORY NOVEL “FALLING LEAVES‚ CHINESE CINDERELLA” WRITTEN BY ADELINE YEN MAH WITH TODAYS SOCIETY THE RELATIONSHIP BETWEEN STEPMOTHER AND STEPDAUGHTER FROM THE TRUE STORY NOVEL “FALLING LEAVES‚ CHINESE CINDERELLA” WRITTEN BY ADELINE YEN MAH WITH TODAYS SOCIETY Abstract The relationship between stepmother and stepdaughter from the true story novel “Falling Leaves‚ Chinese Cinderella” written by Adeline Yen Mah‚ in todays society. The
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Chief complaint: hair loss that started several months ago. History of Present Illness This 45 year old female presents with: 1. Hair loss The patient presents with hair loss that began 5 months ago. The problem is mild to moderate and has worsened. The initial location of hair loss was the diffuse scalp and temporal region that occurred gradually. Symptoms are associated with very low carbohydrate dieting and new medication within 3 - 6 months (Aleve). Symptoms are not associated with hair
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Do you think that the system that we are using today is too hard and unjustifiable? Let’s take maternity leave‚ for instance women don’t have the money or have enough time based on the articles of (Wage and Hour Division (WHD) - U.S. Department of Labor). Then there are students that are struggling to pay their college’s tuition. Some are worried that banks are going to start investing in big business which is bad for the small business owners. Now for a moment‚ let think about our future children:
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