Post Lab #4- Column Chromatography Organic Chem 3418-2 March 3‚ 2011 Theoretical Background- The fluorene and fluorenone mixture was separated by first dissolving the mixture in heptane. Since “like dissolves like”‚ fluorene dissolves with the non-polar heptane and the polar fluorenone dissolves in the polar ethyl acetate solvent. This phenomenon was illustrated in class before the experiment‚ when it was pointed out why water will not dissolve fluorene‚ fluorenone‚ or transstilbene
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Unversity Visca‚ Babay City‚ Leyte Name: Millama‚ Engene O. Course & Year: BS Biotech-2 Lab Schedule: W (1-4) Group 5 Date Performed: Dec. 12‚ 2012 Date Submitted: Jan. 9‚ 2013 Separation of Photosynthetic Pigment by Paper Chromatography I. INTRODUCTION There are different types of components in plant pigments. The most important and abundant chemical pigment found in plants is chlorophyll. This pigment exists in two forms; chlorophyll a and chlorophyll b. Chlorophyll a‚ being
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Liquid Nitrogen Randi Pinter Community College of Aurora Rebecca Hoenigman Chem 101-360 Sitting in a classroom with a guest speaker‚ wondering what was in the tank and why there were carnations nearby. As a young student‚ guest speaker days were an exciting thing to be a part of. The full history of the lesson may have been lost in time; but when the speaker dipped a carnation in a tub of liquid that was pouring smoke onto the classroom floor‚ the results of his actions had the power to make a
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Global Liquid Elevator and Pump Market to 2019 - Market Size‚ Growth‚ and Forecasts Released On 16th September 2015 This comprehensive publication enables readers the critical perspectives to be able to evaluate the Global market for liquid elevators and pumps. The publication provides the market size‚ growth and forecasts at the global level as well as for the following countries: Argentina‚ Armenia‚ Australia‚ Austria‚ Azerbaijan‚ Belgium‚ Bulgaria‚ Canada‚ Chile‚ China‚ Colombia‚ Czech Republic
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Surface Tension Properties of Liquids Introduction The purpose of this experiment is to measure and record the surface tension of water and other aqueous solutions using capillary rise method techniques and practicing lab safety. In this laboratory the surface tension of water depends on the concentration of the following solutes; NaCl‚ acetone‚ and sodium dodecyl sulfate (SDS). Intermolecular interactions as well as other phases (solid‚ or air) make a liquid exist. The data collected will show
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S. Larkai (2011 -2012 ) ‚ Principles of separation and reaction laboratory booklet : continuous stirred tank reactors . pp 1 – 4. Faculty of engineering science and the built environment‚ London south bank university. F.A.Holland and F.S.Chapman "Liquid Mixing and Processing in Stirred Tanks"‚ p.109 (Chapman & Hall‚ 1996). J.J Carberry. "Chemical & Catalytic Reaction Engineering"‚ p.92 (McGraw-Hill‚ 1976). J M Coulson & J F Richardson‚ Chemical engineering 2005. Atkins. P and Jones.L (2010) Chemical
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RADICAL HALOGENATION AND GAS CHROMATOGRAPHY Abstract In radical halogenations lab 1-chlorobutane and 5% sodium hypochlorite solution was mixed in a vial and put through tests to give a product that can then be analyzed using gas chromatography. This experiment was performed to show how a radical hydrogenation reaction works with alkanes. Four isomers were attained and then relative reactivity rate was calculated. 1‚1-dichlorobutane had 2.5% per Hydrogen; 1‚2-dichlorobutane had 10%; 1‚3-dichlorobutane
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Making homemade liquid soap is not as challenging as you may think. With just a few ingredients and a little bit of time‚ you can make your own liquid soap right in the comfort of your home. If you are looking to save some money‚ or just want a fun project to do at home‚ you can create a homemade product that works just as well as commercial-grade soaps at a fraction of the cost. You will need to spend some money upfront‚ but you can make several batches of soap with the ingredients. Bar soap works
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temperature above which it can no longer exist as a liquid‚ no matter how much pressure is applied. Critical pressure (Pc) is a pressure above which the substance can no longer exist as a gas no matter how high the temperature is raised. A supercritical fluid is any substance that is above its Tc & Pc [critical point]. CRITICAL POINT In other words‚ when a substance is above Tc & Pc‚ it exists in a single phase which is neither liquid nor gas; this is a supercritical fluid. 4 Example
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Liquid Crystal Display A liquid crystal display (LCD) is a flat panel display‚ electronic visual display‚ or video display that uses the light modulating properties of liquid crystals. Liquid crystals do not emit light directly. LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images which can be displayed or hidden‚ such as preset words‚ digits‚ and 7-segment displays as in a digital clock. They use the same basic technology‚ except that arbitrary
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