Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75
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Ideal Hero Part 1: Qualities of a Hero A hero is competent and confident. A hero has abilities and talents however extraordinary or mundane they may be. A hero is conscious of the world he or she lives in‚ the society and the people around. A hero also has a strong moral compass. A hero is passionate and dedicated to a cause. He or she is also influential not only because of fame but because of the ability to encourage people to support an ideal. A hero is one who gives his or her life to a
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| Distillation is defined as: `Distillation is based on the fact that the vapor of a boiling mixture will be richer in the components that have lower boiling points.Therefore‚ when this vapor is cooled and condensed‚ the condensate will contain more volatile components. At the same time‚ the original mixture will contain more of the less volatile material. Distillation columns are designed to achieve this separation efficiently.Although many people have a fair idea what “distillation” means‚ the
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Bhopal Gas Tragedy Product - Brand name Sevin (Union Carbide) - Third most used insecticide in US - Not fatal to people Carbaryl - Does not cause cancer Chemistry TLV = 0.02 ppm Methyl isocyanate Methyl Isocyanate (MIC) Clear‚ colourless‚ b.p. 39oC‚ odour threshold 2.1 ppm Effects of 0.4 ppm - Coughing - Chest pain - Breathing pain (dyspnea) - Asthma - Eye irritation - Nose‚ throat‚ skin damage Effects of 21 ppm - Lung oedema - Emphysema (damage of lung tissue) - hemorrhaging - bronchial
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OTHER 985 No Comparable Course Human Physiology BIOL 261 BIO 141 AND BIO 142 OR BIO 144 AND BIO 145 OR BIO 140 AND BIO 144 AND BIO 145 Human Physiology Lecture and Lab OTHER 984 No Comparable Course Introduction to General‚ Organic‚
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Union Carbide Corporation vs. Union of India (AIR 1992 SC 248) [Bhopal Gas Tragedy] -: SUBJECT :- CONTRACT LAW- 1 -: SUBMITTED BY:- Akshat Thakkar Akshat VIN Janak Vardey Jaimil Doshi B.B.A-LL.B – BATCH 2014-19 -: MODULE LEADER :- Mrs. SHILPI SHARMA SUBMITTED TO AURO UNIVERSITY OF HOSPITALITY & MANAGEMENT SURAT‚ GUJARAT APRIL 16‚ 2015 TABLE OF CONTENTS CHAPTER
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How Much Gas CHM 151 LL Wednesday: 11:15-2:00 Instructor: Dr. Leary May 1‚ 2013 Introduction In this project we will choose a solid reagent‚ Mg‚ CaCO3‚ or Na2CO3‚ to react with a hydrochloric acid solution‚ HCl. We are going to measure the amount of gaseous product obtained from the amount of gaseous product obtained from reaction. Then compare to theoretical yield‚ Percent Yield=Actual Yield of Gas/ Theoretical Yield of Gas×100‚ based on stoichiometric prediction. The Ideal Gas Law‚ PV=nRT
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Sustainable Chemistry Terry Collins* Chemistry has an important role to play in achieving a sustainable civilization on Earth. The present economy remains utterly dependent on a massive inward flow of natural resources that includes vast amounts of nonrenewables. This is followed by a reverse flow of economically spent matter back to the ecosphere. Chemical sustainability problems are determined largely by these economy-ecosphere materials flows (see the figure‚ below)‚ which current chemistry education
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special occasions like independence day. The excitement produced by fireworks like ‚ brightening the night sky and plunging it with vivid displays of colour and insignificant‚ which makes them a crowd pleaser. Behind all the excitement of fireworks‚ chemistry plays an important role in creating the vivid colours we witness lighting up the sky. The actual chemical reactions that take place in the explosions require the use of oxidisers‚ reducing agents and binders. The additions of varying metal chlorides
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Perfect International LTD (PIL) “Oil & Gas” Limited is a privately owned company incorporated under the Companies Act Cap.486 of the laws of Kenya. The Company is licensed to procure and market petroleum products in the domestic Kenyan market as well as for export to the neighbouring Great Lakes region in Africa. The full range of petroleum products are marketed by the Company‚ these include Petrol (PMS) Refinery margin system (RMS) Dual purpose kerosene (DPK) Diesel (AGO) Industrial
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