------------------------------------------------- Isolation of Caffeine from Coffee Date of laboratory work: 10/9/2012 5:00-7:45 Date of report written: 10/15/2012 Introduction: The purpose is to isolate caffeine from coffee by using the organic solvent dichloromethane (CH2Cl2) that is also referred to as direct contact. Calcium carbonate (CaCO3) is used to remove the tannins from the coffee. Afterwards an extraction is used to separate the organic layer (bottom) from the aqueous layer (upper). By using a rotary
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****** Professor ****** Eng 104-13 3/2/2013 “From Violence to Victory” In the “Letter from Birmingham Jail‚” Martin Luther King effectively presented his arguments by using Pathos. King pathos is effective throughout his letter because he makes strong emotional connection with the reader. In the words of St. Thomas‚ Martin Luther King quotes‚ from a jail cell in Birmingham‚ “An unjust law is no law at all” (King). After an affiliate from Birmingham invited MLK into a non-violent action program
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wished to say something very sensible but knew not how.” In contrast to Elizabeth‚ Mary is not as opinionated and doesn’t know how to speak her opinion P317 “Unhappy as the event must be for Lydia‚ we may draw from it this useful lesson; that loss…..with such kind of moral extractions from the evil before them.” Mary has a strong disapproval of Lydia’s decisions
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This review critically reviews the book “Men Are from Mars‚ Women Are from Venus” written by John Gray‚ Ph.D. in 2002. John Gray is an American author and relationship counselor. This book is about the relationship between women and men. The book states that most of common relationship problems between men and women are a result of psychological differences between the genders‚ and that each gender accepts and propagates their own society and customs‚ but not to those of the other. The book
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Mrs. Odem made the rounds kissing and hugging each boy. Charlie recognized the love and good hearts of the family (p. 70-72). This reminds me of the family in the book Maniac Magee. The large boisterous Pickwell family from the West End and the caring traditional Beale family from the East End were both welcoming and loving families despite enduring judgments and prejudices against
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low-cost Mosquito killer out of Acapulco extract without spending any money. Specifically‚ it sought to determine the following: 1. Do Acapulco extract spray kill mosquito? 2. How does the homemade mosquito killer differ in cost and effectiveness from commercialized one? Significance of the Study This study is significant in making an effective‚ affordable‚ and safe mosquito killer that can be used to kill mosquitoes around
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We are Not Apart from Nature We Are Not Apart From Nature Sitting alone in the forest on a quiet day in December‚ feeling rather ill‚ depressed‚ and in need of rest‚ I let my mind wander as the cold breeze blew all around me. The world‚ at that moment‚ appeared much more peaceful and much more accepting. The mental war I was fighting seemed to be subdued‚ at least for a moment. The trees swayed ever so slightly and birds chirped demurely‚ their life totally unaffected by my presence. In
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The book “men are from mars and women are from Venus” is written by an American writer‚ popular marriage counselor and seminar leader‚ John Gray. This book has sold more than 50 million copies according to the CNN. Hence this was considered a high ranked book in 1990’s and was sold in the best seller list for 121 weeks. This book is a piece of unique handiwork which teaches how to handle relationships and understand them by accepting the differences of man and women. Each and every couple should
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Question: Are you a representative from from the ambulance company that took Laura to the hospital? Answer: Yes. Question: Do you know what injuries they were transporting her for? Answer: Possible symptoms of a concussion‚ broken arm‚ and memory loss. Question: Were you aware that she had jewelry on when she entered the ambulance but not when she exited? Answer: Yes. It is standard procedure to remove all jewelry from patients. Question: Do you hire people to work as EMT’s that have a past criminal
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Education comes not from books but from practical experiences. An educated person has always been described as someone who reads many diverse books‚ while it is also commonly said that experience is the best teacher. The widely debated topic of the primary source of education has been a prima discussion as people tend to mix up the importance of books and practical experiences in the process of education.” In this essay‚ I will discuss the importance of both parties in education and express my views
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