charcoal (adsorbs the impurities) 4) ONLY IF NEEDED: Gravity filter to remove insoluble materials (including charcoal!) • use fluted filter paper and a hot‚ stemless funnel NOTE: IF THE SOLUTION COOLS‚ PRODUCT WILL CRYSTALLIZE OUT & BE LOST! • use a small amount of hot solvent to rinse flask‚ filter 5) Crystallize solute (Finally! This is the RECRYSTALLIZATION part!) • cool the solution slowly: hot (boiling) → room temperature → 0 ˚C (put in ice water bath) NOTE: THIS GIVES LARGE‚ PURE CRYSTALS & LEAVES
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ACIDS AND BASES The reason that acid-base reactions are so important is that many of the things you come into contact with on a daily basis are either acids or bases. Most fruits are acids‚ as are carbonated beverages‚ tea‚ and battery acid. Common household bases include baking soda‚ ammonia‚ soap‚ and antacids. What are acids and bases? There are not one but three common definitions used to describe acids and bases: 1. Arrhenius acids and bases 2. Brønsted-Lowry acids and bases 3. Lewis acids
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度和标牌翻译的准确度上，但是相关的问题依然存在。 本文运用“翻译目的论”的原理，从翻译的目的性出发，列举例证分析了广州公共标识语的翻译现状，对几种不同类型的公共标示牌进行理论分析，指出错误，并提出相应翻译策略。 [关键词] 公示语标牌、翻译目的论、旅游 Translation of Public Signs in Guangzhou：Skopos Theory Perspective [Abstract] The translation in tourism plays the important part in overseas travel while bilingual public sign is an essential part of the translation in tourism. Guangzhou‚ as an economic and cultured capital of south area in china‚ attracts millions of foreigners. It is doing better in bilingual
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Cross-cultural Translation Studies as Thick Translation Theo Hermans (University College London) 1 Aristotle Let me begin with two specific examples. Both will have a familiar ring. I do not intend to discuss either example in any detail. They merely serve to illustrate‚ however briefly‚ the kind of problem I am trying to address. My first case concerns Aristotle‚ and more particularly John Jones’ book On Aristotle and Greek Tragedy (1962‚ 1971). In the history of readings‚ of interpretations‚
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AUDIOVISUAL TRANSLATION DEFINITION Since ancient times humans have developed their own languages in many ways. Oral‚ written‚ sign languages have helped us to communicate all over the world. But because the difference of our nations‚ people approached the idea to create separate languages in every land or country. Therefore‚ they had to accomplish a new task – translate one language into another. When this goal was reached‚ audiovisual translation emerged. The aim in this essay is to define
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PLANT CELL AND ANIMAL CELL LECTURER : ENCIK AZHAR GROUP’S NAME : 2. Mohd Alimi 3. Suraya Hani 4. Norhaswana CONTENT INTRODUCTION 3 WHAT IS CELL? 4-5 HISTORY OF CELLS DISCOVERY 6 ANIMAL CELL 7 PLANT CELL
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of Shikimic Acid‚ intermediate for the production of Oseltamivir‚ the Avian Flu drug Supervised by: Dr. Reza Yegani Dr. Mohammad Hossein Sarrafzadeh Mr. Habibollah Ramezanzade by: Kaveh Yazdifard Presented on: 1385/10/3 Contents Acknowledgement Introduction Shikimic Acid & its Natural Properties Derivatives of Shikimic Acid Avian Flu Sickness‚ Medications Oseltamivir and Shikimic Acid’s Role in Synthesis Production of Shikimic Acid Extracting Shikimic Acid from the Plant
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Citric acid cycle From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search [pic] [pic] Overview of the citric acid cycle The citric acid cycle — also known as the tricarboxylic acid cycle (TCA cycle)‚ the Krebs cycle‚ or the Szent-Györgyi-Krebs cycle‚ [1][2] — is a series of enzyme-catalysed chemical reactions‚ which is of central importance in all living cells that use oxygen as part of cellular respiration. In eukaryotic cells‚ the citric acid cycle occurs in the matrix of the mitochondrion
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------------------------------------------------- Hydrochloric acid From Wikipedia‚ the free encyclopedia (Redirected from Muriatic acid) Not to be confused with hydrogen chloride. Hydrochloric acid | | | | Other names[hide] * Muriatic acid[1] * Spirits of salt[2] | Identifiers | CAS number | 7647-01-0 | ChemSpider | 10633809 | UNII | QTT17582CB | EC number | 231-595-7 | ChEMBL | CHEMBL1231821 | ATC code | A09AB03‚B05XA13 | Properties | Appearance | Colourless
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Diana Rubene LS2B Abstract The chloroplast is most commonly recognized for its vital role in plant cells & protist cells as their main provider of energy. Within this review we are going to discuss what exactly is chloroplast what structures make up this complex & super efficient organelle which is so important not only to plants & protists‚ but also to us. How exactly does it absorb and use solar energy and use it to produce carbohydrates rich with energy that can be passed down the food chain‚
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