Chemistry Unit 2 Area of Study: 1: Water Chapter 11: Measuring solubility Measuring Solubility Solubility: the maximum amount of that substance that can be dissolved in a that temperature Saturated solution: a solution which no more solute can be dissolved at that temperature Measuring solubility Determine the maximum mass of solute that can be dissolved in 100 grams of solvent at a particular temperature Worked Example A maximum of a 6g of solute can be dissolved in 20g of water at 20ºC
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CH213. Physical Chemistry II. Final Exam Your Name: Your Student Number: 110 Normal Points + 10 Bonus Points If you get 110 points out of 120 points‚ you will get the full 40% assigned to the midterm exam. Your scores 1) 2) 3) 4) 5) 6) Total: out of 25 out of 20 out of 20 out of 15 out of 20 out of 20 out of 120 * All the problems are connected. In other words‚ to solve the problem‚ you may need the information and/or answers given in other problems. All necessary information is basically
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www.kalvisolai.com 5 Mark Compulsory Problems with Solution 1 +2 CHEMISTRY Q. 70 Compulsory Problems with Solution Problems are solved in easiest way (As per Government Answer Key) www.kalvisolai.com 5 Mark Compulsory Problems with Solution 2 SALIENT FEATURES Dear Students ❆ Q.No: 70 is asked as compulsory problem in Govt Exam. ❆ Two problems to be answered out of four problems. ❆ To simplify the problem‚ hints and expected compounds related to molecular formula‚ general formula are
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When something is added to the environment which is very harmful‚ poisonous or fatal to the animal‚ people surrounding it and other living things is called as pollution. In simple term pollution is a contamination by a chemical or other pollutant that renders part of the environment unfit for intended or desired use. It is triggered by industrial and commercial waste‚ agriculture practices‚ day to day human activities and most notably‚ modes of transportation and many the other sources. Pollution
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concerns and conflicts have surfaced throughout human history‚ from the earliest settlements to the latest headlines. This comes as a surprise to many people because our emphasis in history has all too often been on war and politics‚ rather than environment‚ culture and development. The evidence for a longstanding concern for environmental issues has been readily available in manuscripts‚ publications and historical archives. It can be found under labels like conservation‚ public health‚ preservation
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Initially‚ majoring in Forensic Chemistry was not my first choice. I have always been more interested in science but I never thought of actually majoring in the science field. Since I was a child I always looked forward to going to science class. In elementary school my many teachers helped me gain a love for science. But‚ it was in the sixth grade is when I decide that maybe I could see a science field in my future. My sixth grade teacher set up a dissection lab one day and we were able to pick
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Science Autobiography Science‚ one of the many things that us as humans know so much about‚ yet know hardly anything about it. No matter what we already know and what we newly discover‚ science will always be an enigmatic subject to study. Science has always puzzled me. I was homeschooled from first grade up until my 11th grade year when I went to Westchester Country Day School in High Point‚ North Carolina. I don’t remember any science activities that I did before I entered high school‚ other than
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Experiment: Titration of Acidic Household Substances Objective The purpose of this experiment is to determine the molarity and weight/volume percent of acetic acid in vinegar by titration with sodium hydroxide to a phenolphthalein endpoint. This procedure may be modified by titrating an acidic beverage such 7-up or Sprite. Equipment and Material (Total Time 60 – 90 min.) Variety of Berel Pipet Long glass stirring rod Wash bottle 10-mL graduated cylinder 100 mL beakers Material
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SYLLABUS Cambridge O Level Chemistry 5070 For examination in June and November 2014 University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However‚ we cannot give permission to Centres to photocopy any material that is acknowledged to a third party even for internal use within a Centre. © University of Cambridge International Examinations 2011 Contents
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by : Directorate of Education‚ Delhi SOME IMPORTANT REASONING BASED QUESTIONS OF ORGANIC CHEMISTRY 1. Chlorobenzene is less reactive than chloromethane. Ans. In chlorobenzene‚ each carbon atom of benzenering is sp2 hyridised and is electron withdrawing. Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane
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