EXERCISE 11 Synthesis of Aspirin (Acetylsalicylic Acid from Salicylic Acid) RAQUID‚ Rency J Group 5 18L I. Introduction Due to the demand of certain reagents in the laboratory in order to perform and conduct further experiments or produce essential compounds‚ chemists continuously develop organic synthesis. This process aims to prepare and synthesize desired organic compounds from commercially or readily available ones by providing the simplest route in synthesizing the compound
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Prelab 5B Macrocyclic Synthesis OBJECTIVE: The objective this week is to produce Tetraphenylporphyrin and its metal complex. This will be carried out by condensation of 4 equivalents of Benzaldehyde and pyyrole in the presence of propanoic acid. The product will undergo UV/Visible Spectrum tests to determine its lambda max. The lambda max will show us the relationship between a conjugated system and the visible spectrum. PROCEDURE: Step 1: preparation of meso-tetraphenylporphyrin (TPP)
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Credit 4b: Sample Paragraphs If your score in the Midterm Exam is 0‚ 1‚ 2‚ or 3‚ this extra credit will earn you a passing score in the Home Works‚ and if your score in the Midterm Exam is 4 or 5‚ you will earn 10 points in the Home Works. Those who scored 6 in the Midterm Exam is exempted for this activity. This extra credit requires you to look for four (4) sample paragraphs from any textbook. These paragraphs are narration‚ description‚ exposition‚ and persuasion. Look for a sample paragraph
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Thesis Sample When students are required to write a thesis‚ it can often be helpful to have a thesis sample to use as a reference. Theses samples can not only help students to understand the structure of a thesis‚ but they can also help students to understand the kind of content that students need to include in their theses. Some students may also wish to use a thesis sample as a basis for their own theses‚ if the topics of both documents are the same. Thanks to the Internet‚ there are plenty of
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Protein Synthesis Notes If DNA’s shape is altered it can’t function properly. RNA is more flexible so changing the shape changes the function‚ which is wanted. Any shape of RNA can become another. Three shapes/functions of RNA: -mRNA: messenger (linear_____) -rRNA: ribosomal (large and like a globe) More stable than mRNA. -tRNA: transfer (shaped like t) If you flatten this it becomes mRNA. Hydrogen Bonds ………………………………. Protein Synthesis Overview- Two Processes: Transcription- synthesis of mRNA
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Experiment #1: Synthesis of Salicylic Acid From Wintergreen Oil By: Asad Razzaq TA: Date: 18/01/2015 222/Lab Section 8 Introduction Salicylic acid‚ used in production of substances used worldwide such as commonly used analgesic drug aspirin(cite)‚ can be obtained from natural resources such as wintergreen oil or can be synthesized. Through a series of chemical reactions with cheap raw materials beginning with beginning with methyl salicylate and‚ it is a cheaper and more
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9/13/12 Mrs. Braha Period 1 Personal Essay Pushing yourself and always striving for achievement is not an easy thing to accomplish. Never taking the simple route in life and always working hard to become the strongest person possible takes a lot of hard work and devotion. In my life‚ hard work and perseverance have been the only paths to success. This is why people that know me well would describe me as a dedicated human being. I work diligently in school to maintain high
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Presidential elections have been going on in our county for hundreds of years. Most of them took place before television even existed. Television was invented witch color in the early 1960’s and that is when the first televised presidential debate took place (document D). Presidential debates‚ from the start have always been a pretty big hit on the television but ever since 1988‚ the debates ratings have been below 40. I think that this is because more interesting television programs have come
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enetics is the study of heritable changes in gene function that do not involve changes in the DNA sequence. Involves a methylation composition that affects the communication and response between cells and DNA. We all know DNA is your genetic makeup passed down from generation to generation. However‚ our DNA is intertwined with a protein known as histone. The bond between histones and DNA can vary along the DNA strand. This is caused by mythol group composition that cause the histones and DNA to coil
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Neuroplasticity is the process where the brain learns to acquire new skills or adapt to different experiences. It is a useful component for the mental capacity of a human being especially during their performances in the day to day lifestyles. This process involves changes in the brain where it includes replacement of injured tissues leading to an addition of neurons in the brain. After that‚ the reorganization of the information processing areas within the brain systems occurs. Whenever a brain
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