Chemical Separation Introduction: The objective of this experiment was to extract the pigments from spinach leaves‚ perform Thin Layer Chromatography (TLC) on the spinach leaf extract‚ and then determine the best solvent mixture to use to separate the pigments in the extract. The pigments are located inside the chloroplast walls in the cells of the spinach leaves. In order to obtain the pigments the cell walls must be broken down thus exposing the pigment containing chloroplasts. Upon
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and solid C were both extracted from unknown solution by first using chemically active liquid-liquid extract‚ followed by vacuum filtration. Liquid C and solid C were then purified with the use of simple distillation and recrystallization respectively. Through the process of recrystallization‚ the percentage purity of solid C was found to be 6.01%. The melting point range of purified solid C was 117.0 – 119.0C while the boiling point of liquid C was found to be 117C. The identity of solid C and
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Separation Techniques Aim: To separate a mixture of Iron filings‚ CaCO3‚ NaCl into their pure substances. Apparatus: • 2x 150ml beakers • 1x 150Ml Beaker • Magnet • Matches • Evaporating basin • Bunsen Burner • Water • Funnel • Retort stand • Funnel Paper • Sieve • Iron Filings • CaCO3 • NaCl • tripod • Gauze Mat • Cling Wrap • Saftey Goggles Method: 1. Gather Apparatus and the mixture of Iron‚ CaCO3 and NaCl. 2. Weigh beaker and mixture. 3. Use magnetic
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02TTB204 Mechanics of Solids Part B Lab Buckling of Struts 1. Introduction The task was given to obtain the buckling stresses for pin-ended steel struts of various slenderness ratios and compare with theoretical predictions obtained using the Euler and Rankine-Gordon equations. 2. Theory The method of obtaining the buckling stresses followed was to use data show in Appendix A. From the record of applied load‚ P‚ against deflection‚ δ‚ a Southwell plot of δ against
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I. Statement of the Problem a.) What are the disadvantages and disadvantages of taking in Messrs. Bince and Antonio as co-owners of Solid Agricultural Company? What form of business organization do you suggest? Why? b.) What are the advantages and disadvantages of setting up a new company for Novaliches farm only? What form of business organization do you suggest? II. Areas for Consideration STRENGTH WEAKNESS 1.Koh’s mastery in agricultural development 2. Family owned company. Managed
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SOLID STATE MARKS = 04 SOLID STATE A solid is that form of matter that possesses a definite shape and a definite volume. There are two types of solids: Crystalline solids: Solids with a definite geometric pattern and are anisotropic in nature. Examples: Iron‚ copper‚ silver‚ sulphur etc. are some elements which form crystalline solids. Potassium chloride‚ sodium nitrate etc are some of the compounds‚ which are crystalline
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Impacts of solid waste on health The group at risk from the unscientific disposal of solid waste include – the population in areas where there is no proper waste disposal method‚ especially the pre-school children; waste workers; and workers in facilities producing toxic and infectious material. Other high-risk group include population living close to a waste dump and those‚ whose water supply has become contaminated either due to waste dumping or leakage from landfill sites. Uncollected solid waste
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05.05 Mixtures and Solutions Background: Paper chromatography is one method for testing the purity of compounds and identifying substances. Paper chromatography is a useful technique because it is relatively quick and requires small quantities of material. Safety: Warnings: * Rubbing alcohol (or isopropyl alcohol) is flammable‚ so be sure to keep it away from high heat or heat sources. * Keep pigments and solutions away from your eyes‚ wash your hands carefully after coming in contact
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MECH 223 Solid Mechanics L51 Spring 2013 Term Project Group no. (6) Course Instructor: Dr. Mohammed Al-Qaradawi T.A: Eng. Salim Mohandes Group members: Amal Bsaisu 201002072 Nada Mamdouh 201105374 Nazha Ghadban 201104186 Ola Al-Masri 201103017 Samar Nasr 201000137 Due Date: 3-6-2013 Abstract: In this project we were asked to select an object (L shaped)‚ and apply the outcomes of Solid Mechanics course
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BASIC SEPARATION TECHNIQUES Contemporary modifications of filtration and dialysis use a matrix-based fibrous material that provides a mechanism of separation in many homogeneous immunoassays. These materials may be coated with specific antibody-ligand to foster selection of specific materials or species. Certain labels use magnetic particles in conjunction with strong magnets to effect separation. Basic universally used separation mechanisms‚ outside of those incorporated in immunoassay‚
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