LABORATORY REPORT 4 PREPARATION OF ALUM FROM ALUMINUM METAL Huy Nguyen October 2nd‚ 2012 The objective of the laboratory is to synthesize alum (KAl(SO4)2.xH2O) from aluminum powder and to determine the proportion of water in the alum crystals. Alum is a product from the reaction between potassium hydroxide and sulfuric acid. The reaction include several steps‚ as followed: Aluminum powder reacts with potassium hydroxide to generate Al(OH)4- ions and release hydrogen. 2 Al(s) + 2 KOH(aq)
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In recent years‚ iron and steel material iron powder of prices rise‚ the choice of sand iron profit‚ increased profits. Therefore‚ special machinery and river sand processing equipment‚ magnetic separation machine series jaw crusher manufacturer processing equipment already in many areas the national promotion. At the same time‚ they are inseparable from magnetic separation machine. The milling equipments how to choose from sand iron? These mineral processing equipment general working principle:
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India Mineral Stone Crusher India mineral stone crusher or India stone crushing plant may be the key crushing device to interrupt substantial tricky rocks‚ gemstones‚ metallic minerals into tiny contaminants. The stone crusher features jaw crusher‚ impact crusher‚ cone crusher‚ VSI crusher from key crushing to tertiary crushing. Stone Processing Plant Suppliers From India The?Vipeak is definitely the experienced stone processing plant suppliers from India‚ positioned in China‚India‚ in addition
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The industrial separation process that I have decided to do is gold separation. Gold separation can be done in a number of ways but there is not always one way to do it‚ but the combination of a couple of these processes to extract pure gold. Gold is obtained form the lithosphere. It is separated from the ore found in the lithosphere. Gold’s symbol is Au. Its atomic number is 79 and has an atomic mass of 196.96655 amu. Its melting point is 1064.43°C‚ while its boiling point is 2807.0 °C. It is
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This assignment entailed the task of investigation into the a) Conditions under which corrosion is accelerated‚ and b) Methods of preventing corrosion. Two experiments were implemented to answer these questions and hence reach a definate conclusion.First off let’s look at the background of corrosion and the way in which it occurs.The first hypothesis to answer was‚ ’What affect does water temperature have on the rate of corrosion of iron in sea water?’ The assumed answer was that ’ As temperature
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Introduction Silver is a chemical element with atomic number 47 and symbol Ag. It is white‚ soft‚ mallable and ductile metal slightly harder than gold. Silver is extremely flexible‚ this means that it can be converted into both flat sheets and electrical wire. This makes silver is an ideal metal for all kinds of industrial use. Silver occurs in lead‚ Zinc and copper ore deposits. Lead ore is the main source of Silver. In fact‚ 75% of the resources in the world are found in association with other
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Using the information contained in the case‚ conduct a five-forces analysis of the U.S. Steel industry. What conclusion can you draw from this? 1. The risk of entry by potential competitors: High a. Capital Requirement: Steel industry is a capital intensive business. b. Economies of scale: Research and Development expenses and better bargaining power while sourcing raw materials. It may be noted that those steel companies‚ which are integrated‚ have their own mines for key
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مدرستنا الثانوية اإلنجليزية‚الشارقة OUR OWN ENGLISH HIGH SCHOOL‚ SHARJAH A GEMS SCHOOL CHEMISTRY WORKSHEET TOPIC: METALS AND NON-METALS GRADE:8 Note: Revise the symbols and valency of metals and non-metals. Q1.What would you observe when you put a) Some zinc pieces into blue copper sulphate solution? b) Some copper pieces into green ferrous sulphate solution? c) An iron nail into blue copper sulphate solution? Q2.Complete and balance the following equations: a) Zn + O2 b) Pb + O2 c) Cu
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Oxidation Lab Part 1: Purpose: You are going to investigate the ease with which different metals undergo oxidation and reduction. Materials: | 4 samples of each of: lead‚ zinc‚ iron‚ copper | spot plates steel wool/sand paper | | | | Solutions of: | copper(II) sulfate Ferric nitrate Silver nitrate Lead (II) nitrate | | Procedure: 1. Obtain 4 samples of each metal and clean with steel wool or sand paper. Wash your hands after cleaning the metals so you are not exposed to lead
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EXPERIMENT 6 – Empirical Formula of a Compound INTRODUCTION Chemical formulas indicate the composition of compounds. A formula that gives only the simplest ratio of the relative number of atoms in a compound is the empirical formula or simplest formula. The ratio usually consists of small whole numbers. We call a formula that gives the actual numbers of each type of atom in a compound the molecular formula. The numbers in a molecular formula will be whole number multiples of the numbers in an empirical
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