phase by a solid-phase synthesis method. The blown-up parameter confirms the feasibility for industrialization. Having exchange property with acid and base together. The resulting resins show good properties for the removal and even recovery of heavy-metal ions from their aqueous solutions or wastewater [33]. The Na form of two chelating ion exchange resins Chelex 100 (Bio-Rad) and Amberlite IRC 748‚ both of which have iminodiacetic acid function group‚ was used to exchange Cu2+ and Zn2+ from
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Submitted: July 4‚ 2015 Date Performed: July 4‚ 2015 Lab Section: Chem-181DL1 Course Instructor: Prof. Amal Bassa Purpose The purpose of this experiment was to perform and observe the flame tests of some alkali and alkaline earth metal ions. Procedure To begin I placed approximately 0.5 mL of sodium nitrate in a well of the 24-well plate. I then placed approximately 0.5 mL of the remaining 6 solutions and the unknown in 7 other wells of my well plate. Then taking a cotton swab‚
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Plutonium Essay I would like to work on the metal plutonium because the discovery of plutonium has a great impact on the world. Plutonium’s symbol is Pu and its atomic number is 94. This element has 150 neutrons and 94 protons and its standard atomic weigh is 244. Plutonium is located in the 7th period and it is a silvery white metal. One of its main uses is to act as the fuel of nuclear fission Plutonium does not exist naturally‚ although some say that small
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4/29/2013 5.1 Lab Report - Identification of Metallic Ions TITLE: LAB 5.1 IDENTIFICATION OF METALLIC IONS PURPOSE: In this lab we are learning how to observe and perform “flame tests”‚ of alkali and alkaline earth metal ions. We will use basic lab equipment provided in our Labpaq‚ and follow all safety precautions in this lab. From reading the discussion and review‚ we understand that the normal configuration of the electrons is called “the ground state”. We understand that they are
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melt or even vaporize metal. The melted metal is washed away by the dielectric. The sparks cut small‚ spherical shaped‚ cups into the surface. The surface is covered with recast (melted and resolidified) metal. Thus‚ there will always be a hard‚ brittle‚ surface layer on EDM part surfaces. What process would you recommend to make many small holes in a very hard alloy where the holes will be used for cooling and venting? Again‚ LBM is good for small holes in hard metals and since they are being
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environments. Here are those solubility rules: Most alkali metal compounds and compounds are soluble. Cl-‚ Br-‚ I- compounds are soluble‚ except when they contain Ag+‚ ‚ or Pb2+. F- compounds are soluble‚ except when they contain group 2A metals. ‚ ‚ ‚ and CH3COO- compounds are soluble. compounds are soluble‚ except when they include Ca2+‚ Sr2+‚ Ba2+‚ Ag+‚ Pb2+‚ or . ‚ ‚ ‚ ‚ S2-‚ OH-‚ and O2- compounds are insoluble. Group 2A metal oxides are classified as strong bases even though they are
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WHAT ARE CHALCOGELS? Chalcogels are a new type of aerogel that is chalcogen-based. Aerogels are a special type of material that presents a high surface area. Chalcogels are composed of metal-chalcogen moieties that are interconnected with a linking metal ion (Riley et al.‚2012). Figure 1 AeroGel INTRODUCING… TM Physical and Chemical Properties Chalcogels are a new family of aerogel that is not oxide-based (Katnatzidis and Bag‚ 2008). Zinc chalcogenide‚ like many other aerogels‚ have
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opened state. Also‚ it is usually made from chrome-plated steel like the wedges to prevent any possible failures through metal fatigue in continued use. The handles/grips of the staple remover are important for the usage‚ but it does not have any functional roles for the aim of the device. The grips provide easy use for users‚ because people do not have to hold cold and tough metal surface. Grips are largely made from plastic materials which are the most proper choose with its cheapness and formability
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speed of a metal carbonate breaking down depends on where the metal is in the reactivity series. The more reactive a metal is the slower it takes for it to breakdown. The less reactive a metal is it breaks down faster. Explain the hypothesis using scientific ideas: The metal carbonate which is lower in the reactivity series such as copper can thermally decompose much faster because it is the least reactive metal so its an unstable carbonate and the bonds are much weaker. So the metal that is
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LIVERPOOL JOHN MOORES UNIVERSITY School of Engineering‚ Technology and Maritime Operations COLD WORKING OF METALS Author: Student No: Module Code: Module title: Date: S. S. Hlongwane 508450 5065ENG Materials 31/10/2011 5065ENG COLD WORKING OF METALS REPORT CONTENTS S.S. HLONGWANE 508450 1 INTRODUCTION ............................................................................................................................... 3 1.1 1.2 BACKGROUND ......................
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