Purpose: The purpose of this lab was to determine the freezing point of pure water‚ the experimental van’t Hoff factor for a substance and the molar mass of an unknown solution. Reagents: 25mL deionized Water ¼ to ½ inches of rock salt 25mL Sodium Nitrate (NaNO3 ) 25mL unknown solution – handle unknown solution carefully Procedure: For part 1‚ the freezing point of deionized water was determined. An ice bath was prepared by filling a 600mL beaker ¾ full of ice and covered with ¼ to
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MICROECONOMICS ASSIGNMENT Demand & Supply of Lauric Oil TABLE OF CONTENTS 1. Introduction 1.1 What is lauric oil? And what are its applications? Page 3 2. Factors affecting demand 2.1 2.2 2.3 2.4 Population and food demand Crude oil and biodiesel Prices of palm and other vegetable oil Important events of Year 2011 Page 4 Page 5 Page 6 Page 7 3. Factors affecting supply 3.1 3.2 3.3 Climate Incremental supply forecast for 2011 – 2012 New policy highlights Page 8 Page 8 Page 10
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Y ou may have heard that omega 3 fatty acids can actually play a role in the treatment and prevention of depression. Does the rumor reign true? Can consuming omega 3 fatty acids really help fight depression? This article will give you all the information you need to know on the hot topic of omega 3 fatty acids and depression. To begin‚ we will start by explaining what omega 3 fatty acids are. Omega 3 fatty acids are essential fatty acids. This means that they are vital for human health. However
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Freezing and Melting of Water. 10/24 Richard Landolfi Due Date:11/1 Purpose the purpose of this lab is to determine the freezing and melting temperature of water. Freezing temperature‚ the temperature at which a substance turns from a liquid to a solid‚ and melting temperature‚ the temperature at which a substance turns from a solid to a liquid. Hypothesis If the water is at a low temperature then it will freeze
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FREEZING FOODS 1. Freezing storage space is valuable. Use it only for high quality meats‚ fruits and vegetables. Do not freeze and store excessively bulky products. 2. Place a variety of foods in your locker or home freezing unit. Avoid long storage of any items. Add new items as rapidly as storage space will permit. 3. If your locker plant or home-unit has a quick-freeze compartment‚ use it. The temperature of this compartment should be held at 0 or below. The time required for freezing should not
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Experiment 2&3 Recrystallization and Melting Points Determinantion of Benzoic Acid Abstract In experiment 2‚ recrystallization was used to purify the crude benzoic acid extracted from a mixture during experiment 1. Then a percent recovery for this recrystallization process was calculated. In experiment 3‚ the melting point ranges of the crude and purified benzoic acid were both determined by using Melt Temp Apparatus. Introduction Recrystallization is a purification technique for non-volatile
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melt. This only works‚ however‚ if the temperature outside is at or near freezing. If it is too cold outside‚ the ice itself becomes very dry and salt is not as effective in melting it. Salt Reduces Freezing Temperature of Water * Salt works by lowering the freezing temperature of water. Salt water needs to reach a colder temperature than pure water to freeze. This is why salted ice on roads that are near the freezing temperature of pure water (32 degrees Fahrenheit) will melt and not refreeze
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Freezing out profits Synopsis Freezing out profits is an article that discussing on one company which is Cold Cuts Ltd (CC). The managing director for this company is Mr. Dali. It produces Singapore’s only refrigeration parts and specializing in it. He is the one that is responsible for all the decision making that need to be done in the company. CC was essentially a subcontractor of components for customers who were original equipment manufacturers (OEMs). This company not only faced competition
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Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
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The media is about paying for egg freezing for female employees until they are ready to become parents. It has been said in the film that freezing the eggs of women helps women compete for talent in a largely male dominated industry. Also‚ it addresses the conflicts between the biological clock and the clockwork of women’s career. Them paying for women to freeze their eggs can help resolve those problems by pushing women’s fertility into the future. One way that this is all consistent with symbolic
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