Experiment 4 – Liquid Phase Chromatography I. Objectives This experiment’s goal is to explore one-dimensional and two-dimensional paper chromatography. II. Schematic Diagram of the Procedure PAPER CHROMATOGRAPHY Wash leaves‚ cut them into smaller pieces; in a mortar macerate them in circular motion Add 8mL ethyl alcohol to extract pigments‚ continue macerating until finely grounded Transfer extract to evaporating dish‚ allow to conc‚ don’t let extract to dry out Concentration
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thing a person says or does affects not only one person but also ten people. In the movie Crash‚ the characters were all very racist to each other. There were two African American men who did not like white people. They did to the white people exactly what the white couple was stereotyping them as. They proved their stereotype to be true just because they saw the white woman hold on to her husband. The white woman should not have been scared because they most likely would not have done anything. They
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mobile phase can be liquid‚ gas‚ or supercritical fluid. How Does Chromatography Work? Chromatography is a surface effect. It works by first starting off with an unidentified liquid being injected into a column. As the chemicals in the liquid move down the column‚ they separate depending on their physical and chemical attributes‚ such as speed and weight. To easily picture the process‚ the example will pertain to a paper chromatography process in which the liquid is moving over the paper‚ separating
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is not a lot. Sometimes an extra dollar here and there at the grocery store is all I can afford when the cashier clerk asks. By I do not hesitate; I just do it to help which ever foundation they are currently doing. By not hesitating‚ I feel that is what my moral worth is. The virtuous qualities that are most important to possess is the virtue of kindness. At a young age‚ children should be taught kindness so they have the principle of respect when they grow up and to learn to appreciate kindness
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to undergo the process of separation. Distillation‚ Filtration‚ and Chromatography are known alternatives to separate the
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THE CASE ABOUT RF AND TATARSTAN DELEGATION OF AUTHORITIES 1. Why Tatarstan was succeeded to be the “elected” region in terms of its’ authorities? As far as I could understand‚ the reasons why Tatarstan was chosen for delegation of Authorities and this Agreement are mostly historical. Historical and political preconditions of Tatarstan turned in such way‚ that Russian Federation and Tatarstan were nearly in equal position. For example‚ Tatarstan was independent co-founder of USSR‚ Tatarstan Tatarstan
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Solubility as a Property of Matter A Lab of Chemicals‚ Chromatography‚ and Crime! Chemistry is a natural science that deals with the composition of matter and the changes it undergoes. At crime scenes‚ investigators often find unknown materials that need to be identified. If an unknown material is a mixture‚ an investigator may want to know one or two things about it: What are the ingredients of the mixture? Is the mixture found at the scene the same as a known mixture? A mixture is a collection
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Fractional Distillation & Gas Chromatography Exp. 1 Pre-Lab: 1) When two substances whose molecules are very similar from a liquid solution‚ the vapor pressure of the mixture related to vapor pressure of the pure substance. Also it could be defined as a two liquid are ideal solution when they don’t react with each other and they make no association. 2) Are a mixture of at least two different liquid‚ and known also as a mixture of two or more liquid in such away that its component
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Organic Chem II Lab 2/15/15 Friedel-Crafts Acylation of Ferrocene and Column Chromatography Introduction: The intention of this lab is to analyze the formation of acetylferrocene using column chromatography. The Friedel-Crafts acylation reaction created acetylferrocene and diacetylferrocene‚ using phosphoric acid as a catalyst for the reaction between acetic anhydride and ferrocene (once applying heat). During column chromatography‚ a solution is passed through a filtration system of silica‚ sand‚ and
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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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