HKU SPACE Community College Higher Diploma Programme First Semester 2010 – 2011 English for Academic and Professional Purposes (Part II) Assignment 2: Research Report “The Attitudes towards Waste and Recycling among HKU SPACE Community College Students.” To: From: DAVID OSHLACK CORA CHAN LI WING NAM‚ VENUS (10457670) (10454461) MAK OI YING‚ YUKI (10460402) MAN LOK YI ‚ JOANNA (10453298) WONG WING MAN‚ WING (10454885) Class: CD 85-322-18-03 (01) Submission Date: 19 November 2010
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Lab Report Macrocyclic Synthesis (Heme Analog) I. Purpose of Experiment and Introduction The purpose of this lab experiment is to prepare meso-tetraphenylporphin (TPP) and its copper‚ cobalt or zinc complex by condensing benzaldehyde with pyrrole in boiling propanoic acid. II. Introduction and Background There are two types of proteins that function as oxygen carriers: myoglobin (stores the oxygen) and hemoglobin (present in red blood cells and is responsible for oxygen transport)
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Recycling Speech Outline Quang Nguyen 8/16/2012 Speech 275 Recycling Speech Outline INTRODUCTION: I. Did you take out the trash? That’s the question that has been frequently asked of you to do. Whether from work or home‚ everyone has trash to throw out. But most people do not care about recycling enough to make the earth a better place. Recycling is painless and it doesn’t take that much time to do. Think of how much harm you cause to the environment when you do that. There’s already enough
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Protein synthesis is the process whereby proteins are produced‚ or synthesized‚ in living things according to "directions" given by DNA (deoxyribonucleic acid) and carried out by RNA (ribonucleic acid) and other proteins. As suggested earlier‚ this is an extraordinarily complex process that we do not attempt to discuss here. Following synthesis‚ proteins fold up into an essentially compact three-dimensional shape‚ which is their tertiary structure. DNA contains the instructions for a cell’s structure
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Formal Report no. 1 Synthesis of Aspirin Chemical Principles Aspirin is most widely sold over-the-counter drug. It has the ability to reduce fever (an antipyretic)‚ to reduce pain (an analgesic)‚ and to reduce swelling‚ soreness‚ and redness (an anti-inflammatory agent). Much of this is believed to be due to decreased production of prostaglandins and thromboxanes. Aspirin’s ability to suppress the production of prostaglandins and thromboxanes is due to its irreversible inactivation of the cyclooxygenase (COX)
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Lab 3: Grignard Synthesis Objective: The goal of this lab is to synthesize a Grignard reagent from bromobenzene and magnesium metal in diethyl ether. This same Grignard reagent would then be used to prepare a tertiary alcohol and then purify and characterize the product. Table of Reagents: Name Chemical formula Melting Point Boiling Point Density Safety Hazards Diethyl ether C4H10O -116.3°C 34.6°C 0.7134 g/ml Flammable Bromobenzene C6H5Br -30.6°C 156°C 1.5 g/ml
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Recycling a persuasive essay Recycling is a wonderful thing that we can do‚ recycling can help us breathe better‚ give us job opportunities‚ protect our wildlife and nature‚ and even make money. In this persuasive essay I will convince why it is good to recycle. Our economic system is where we live in‚ it is what we breathe‚ but it is also where garbage lies. Our world is beautiful‚ but it is very dirty and filled with garbage. The garbage we use can go in the ocean and makes the ocean brown and
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Experiment 2 and 3: Synthesis of Aspirin and Determination of Melting Point A. Abstract Aspirin is the common name for the compound acetylsalicylic acid‚ widely used as a fever reducer and as a pain killer. The first part of the experiment aims to synthesize aspirin from the reaction of salicylic acid with acetic anhydride with the aid of phosphoric acid as a catalyst. The second part of the experiment aims to assess the purity of aspirin through the determination of its melting point and
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A Synthesis of Safrole and o-Safrole W.H. Perkin & V.M. Trikojus J. Chem. Soc. 1663 (1927) HTML by Rhodium No direct synthesis of safrole has been recorded‚ the most recent attempt being that of Baker and Robinson (JCS‚ 1925‚ 127‚ 1424)‚ who distilled the product of the action of silver oxide and water upon gamma-piperonylpropyltrimethylammonium iodide‚ but obtained isosafrole‚ the double bond moving into the position of greater stability. Kawai (Sci. Papers Inst. Phys. Chem. Res.‚ 1925‚ 3‚ 263)
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living creatures‚ work together in a certain process that is crucial to existence: the formation of proteins. Although all species differ from each other in various ways‚ the processes by which proteins are synthesized are the same in all. Protein synthesis is a very complex process. In order to understand the process‚ there some basics that are essential for cells to create the proper proteins. DNA is a very long and double-stranded molecule that contains coding‚ through four nitrogen bases (adenine
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