considerations: Briefly describe the safety measures you had to take to perform the experiments. Before entering the lab‚ I put on my lab coat and practiced using my goggles in case of any spills or splashes. I also used proper methods for dispensing my mix liquids. /2p /2p Procedures: Briefly describe the experimental procedures you followed to answer the guiding questions. Outline the specific problems you were trying to solve and how you did it. 1. /2 p /2 p Find the volume of the
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with the catalyst thiamine to form a new C-C bond. A total of 2.626 grams were recovered. There was a 33% recovery of benzoin. The low percent recovery could be due to the purity of the limiting reactant‚ benzaldehyde. Upon filtration‚ the mother liquid appeared oily making it more likely that the low recovery was due to the solution ‘oiling out.’ This could be avoided in the future by maintaining the temperature of the solution below the melting point of the crystals. Post Lab Questions 4
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the air gap space. The module are made of Perspex to resist corrosion by the NaCl solution. The feed NaCl solution flows through the right cell while the cooling water passes through one side of the condensing plate in the left cell. The permeate liquid is collected in the middle cell‚ which is placed between the feed and coolant. The condensing plate is made of stainless steel. The AGMD system is vertically installed. The permeate and feed are separated by a porous hydrophobic membrane. The effective
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Emulsification of Oil Prepared for: Mrs. Elena Gallagher By: Anna Villanella March 25‚ 2014 Oil is a nonpolar molecule. Polar molecules have charged groups or atoms. Nonpolar molecules have no charged groups or atoms. Polar molecules‚ like water‚ are good solvents for other polar molecules. This means they molecules that react with the water disperse into the water. Nonpolar molecules don’t disperse in water because nonpolar molecules and polar molecules don’t interact. How exactly can we discover
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and 34 wt% for polyethylene. Physical and chemical properties of the wax/oil products were investigated. Appearance of the wax/oil showed that at temperatures 550-600°C‚ the main products were highly viscous and at 500°C products were low viscous liquids. The chemical composition of the wax/oil products were mainly aliphatic hydrocarbons of up to C26 carbon atoms. Introduction Pyrolysis is now considered an appropriate technology in dealing with waste problems‚ such as waste plastics. This
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Many people are fascinated and astonished with the term “Fracking”‚ which is a process of injecting liquid at high pressure into subterranean rocks‚ boreholes‚ and other forms of rocks so that the force of the liquid can open existing cracks or holes to extract oil or gas. Fracking was discovered by Geologist who found out that further opening a rock formation can expose oil and gas that’s within the rock‚ but however even though Geologist is fascinated and intrigued by this process other people
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The Use of Cooling Curves in the Determination of the Phase Diagram for a Lead-Tin System V.O.L.Tabell Department of Mining‚ Metallurgical and Materials Engineering University of the Philippines‚ Diliman vo_tabell@yahoo.com Abstract This paper discusses the use of the cooling curves in the determination of the phase diagram of a Lead-Tin system. The inflection points of these cooling curves were obtained by melting a series of mixtures of lead and tin at varying compositions. These critical
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How to Wash and Dry Are you washing your car or just damaging the paint? Cleaning your car should be a weekly thing‚ not just when you feel that your car is getting dirty or is already dirty. The up keep of your car isn’t easy either. You have invested many money and time in your vehicle. Shampooing‚ drying‚ and waxing are very simple tasks that will make your car sparkle all year a round. When you are washing your car should always find a cool shady spot to clean under. Once you have chosen
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Chemistry Final Exam Version 10/7/14 Name: Student number: Directions: It is important that you provide answers in your own words. Please focus only on information from the text/eBook to create your own solutions. Please do not use direct information from an outside source (especially copying and pasting from an “answer” website). Use of direct information from an outside source is against school policy. All answers will be checked for plagiarism. Instances of plagiarism can result in
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7.3 Flow Rate and Viscosity (pg 153) Q1. If the flow rate in a pipe is 2 L/s‚ what does that tell you about how fast the water is moving. A1. It tells me that the water is moving fast through the pipe at 2 litres per second. If there were 60 seconds you would have 120 litres. Q2. When you tip a bottle of syrup upside down‚ it takes a longtime for all the syrup to pour out. Explain this using the terms “viscosity‚” “cohesion‚” and “adhesion.” A2. Syrup takes a long time to empty
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