Instructor: Ma ’am Lioanag Section: Civil Engineering 1-19 Date Performed: July 27 ‚ 2013 Group No.: 3 Date Submitted: August 3 ‚ 2013 Experiment No. 4 : PAPER CHROMATOGRAPHY INTRODUCTION The objective of this experiment was to resolve a given sample into its components by paper chromatography‚ to evaluate the retention factor of each component in the sample and to compare the relative solubility of the various components of a mixture of colors in a given solvent. METHODOLOGY
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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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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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________________________12345_______________________ Date ____23.8.2013___________ Block _______ Training Lab: Paper Chromatography I. Background Information: When working in a lab‚ scientists often need to identify different molecules that are present in a sample they are studying. There are many ways to identify unknown molecules/chemicals in a sample. The method you will be using today is called Paper Chromatography and consists of 2 steps. First‚ you will separate the unknown chemicals and then you will identify
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Krotec; Honors Bio Period 4 Photosynthesis Lab Report I. Introduction The photosynthesis lab is designed to quantify photosynthesis‚ enabling a number of variables to be tested for their effects on photosynthetic rate. The production of oxygen‚ is used as an indirect measure of photosynthetic activity.The lab allows the examination of the effects of different wavelengths of light on photosynthetic activity. The other aspect of the lab includes Paper chromatography‚ which is a useful technique for separating and identifying pigments and
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grade Orientation on 8/30/12. Folders‚ a pencil pouch and assignment notebook are included. 1 Flash drive Scientific Calculator-Texas Instruments TI-30Xa To turn into resource: 1-24 pack #2 pencils (not mechanical) 2 pkgs Loose-leaf‚ wide-lined paper 1 pack of red pencils (approx. 12) 1-24 pack of Colored Pencils 1 Box of facial tissue 1 Highlighter 2 Glue sticks Scissors 6K only-protractor & ruler ART 6: Five #2 pencils and pencil sharpener. BAND: instrument (reed players—at least 3
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References: 1) E. Stahl‚ Thin Layer Chromatography‚ Springer-Verlag‚ New York‚ 1969 2) Camag Scientific‚ Inc.‚ 515 Cornelius Harnett Drive‚ Wilmington‚ NC 28401‚ phone 800-3343909‚ fax 919-343-1834 3) Desaga GmbH‚ P.O. Box 101969‚ D-69009 Heidelberg‚ Germany‚ phone 0-62-21-83590‚ fax 0-62-21-840887
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Dying Leaves The tongue-tickling aroma of fall eludes him‚ as he is entranced by his auspicious walk within the tunnel of dying leaves. They wrap their arms gently around him as they liberate themselves from the now naked branches. Him‚ the hundred and seventy pound man defined by height and silver-lined‚ faded blonde hair that pairs sweetly with his carefully goldened skin‚ pursues his destination with great purpose. His significance: the only name in which he desires to be trickled into the
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INT. BAR “THE FOOL” - NIGHT FADE IN: Only a spotlight shines on FIONA’s face. She’s in her late twenties‚ kind of pretty‚ but somewhat dark and peculiar. Her long hair is dishevelled and her style messy. She wears a black hooded sweatshirt with old brown leather boots. The outlines of a stage are vaguely recognizable. The rest stays in the dark. For a moment It seems like a theatre stage. Everything is silent. Fiona stands in front of a microphone. Her eyes are closed‚ she seems nervous. Slowly
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close her eyes because she needs the light in order to continue her drawings. Johnsy agrees‚ but she tells Sue to hurry as she wants to go down like the last leaf. she goes to Mr. Behrman‚ informing him of the gravity of Johnsy’s condition‚ hoping there is something he can do. Sue takes him outside to look at the barren vine with one last leaf. So greatly concerned is Sue about her friend that she effects the change in Johnsy’s psyche that causes her to become well. Sue’s determination to do what she
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