Chromatography Lab Questions Pre-Lab Questions 1. A pencil is used rather than a pen to mark the “starting line” in step two because a pen or marker while be used to place a small dot of ink in the center of the X that is made with a pencil. 2. Capillary action is filling of pores in a solid with a liquid. Capillary action is caused by spotting or absorption and is allowed to seep or flow through. 3. The type of pen that will probably give better separation in this paper chromatography
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Over the last several years‚ state and local governments have been firing shots across the bow of the Interactive Video Game Industry‚ seeking to constrain increasingly graphic and violent content found in current interactive games. The federal government has now jumped into the fray‚ with proposed legislation seeking to punish the marketing of violent media to children. With the cyber-world of Internet role-playing games about to explode‚ increasing pressure will be brought to bear by morality groups
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Running head: BIG 5 Assignment #1 Big Five Personality Traits Mary D. L. (Lorrie) Allen Organizational Behavior Dr. James J. Kolacek February 3‚ 2013 Strayer University The Big Five model is a personality theory that describes personality using five basic traits. Openness to experience
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Lab 9 Working with Printers Exercise 9.1 Installing a Printer Overview Contoso‚ Ltd. has just taken delivery of several new printers that the IT director purchased through an auction. He has assigned you the task of installing the printers and making them available to the users of the company network. For the first printer‚ you intend to connect the unit directly to an LPT port in the Windows 7 computer that will function as the print server. In Exercise 9.1‚ you install the driver for the printer
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NT1210 Chapter 4 Lab 4.1.1 Standards are put in place to make everything work together error free. Because Stability‚ Consistency‚ Minimization of packet errors. 4.1.2 Because the voltage used to transmit data needs only be high enough for the receiver to detect it. Making the voltage higher would make the receiver electronics more difficult. 4.1.3 Hospitals‚ security systems‚ PA & recording studios. The drawback of STP cables is that they will increase the total cost of an installation.
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Assignment 5 – Art and Abolition By: Joshua Cardinale Land of the Lotus Eaters – Robert S. Duncanson There are several artist and paintings in the Sharon Patton book. To choose one particular landscape painting would be tough. Moreover‚ in choosing this painting and discussing why I think black artists may have used these landscape paintings as a means of expression during the abolitionist movement can be possible to do so. Within several of these landscape paintings‚ I do believe that I see possible
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Abstract: For the first part of this lab we refluxed different Carboxylic acids and alcohols in the presence of a acid catalyst in order to form Esters by Fischer Esterification. These Esters had different pleasant smells that we then evaluated. In the second part of the experiment‚ we broke the ester bonds of a triglyceride in order to form glycerol and carboxylate salts. This process is known as Saponification because it produces amphiphilic molecules that allow soap to remove dirt from the surface
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What is the place value of 6 in 874‚695‚457? 735‚480 = 7 x 10 5 + 3 x 10 4 + N + 480. What is N? Which number has 2 and 9 as factors? 6282‚ 7262‚ 6380. What is the remainder when 34‚785 is divided by 37? How many prime numbers are there between 80 and 100? Round 478‚512 to the nearest ten thousand. Round each number to the nearest thousand and estimate the sumof 7 501 + 8 398 + 6 521 In 345‚846‚ how many times as great is the underlined 4 than the4 that is not underlined? What is the
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Simulation Lab Group #5 Dynamic Systems 1‚ ME3211 David Cramer Percentage of Work_______________________________________ Cory Spelman Percentage of Work_______________________________________ Table of Contents Objective Calculations Experimentation Results Appendices Objective The objective of this lab was to understand how to use the Working Model 2D software and to apply this knowledge to create a vibration absorber. Part 1 was to open up a demo file and analyze the force vs
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For this lab it was necessary to bring a watch with a second hand‚ as well as personal protective gear: lab coat‚ safety goggles‚ and safety gloves. It was best to work in pairs and one partner needed to be a timekeeper while the other one would record the data. The timekeeper then would announce every 5 second interval‚ beginning from when the enzyme was added to the tube. On the other hand‚ the recorder would read and record the absorbance from the spectrometer at the 5 second intervals. This was
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