Analysis: 1. What volume of ammonium sulphate was required to give rise to precipitation? Tube 1: 5.5mls of (NH₄)₂SO₄ was required to give rise to precipitation. 5.5ml/20ml *100% = 27.5% Tube 2: 6.7mls of (NH₄)₂SO₄ was required to give rise to precipitation. 6.7ml/20ml *100% = 33.5% Tube 3: 5.6mls of (NH₄)₂SO₄ was required to give rise to precipitation. 5.6ml/20ml *100% = 28.0% Tube 4: 6.2mls of (NH₄)₂SO₄ was required to give rise to precipitation. 6.2ml/20ml *100% = 30.5% 1. From the
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This is a professional and depth research report on Global and China Barium Titanate industry. The report firstly introduced Barium Titanate basic information included Barium Titanate definition classification application industry chain structure industry overview; international market analysis‚ China domestic market analysis‚ Macroeconomic environment and economic situation analysis‚ Barium Titanate industry policy and plan‚ Barium Titanate product specification‚ manufacturing process‚ cost structure
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_______________________________________ ABSTRACT The experiment aimed to determine the equilibrium constant Keq of the formation of Fe(SCN)2+ from Fe3+ and SCN- in the equation Fe3+(aq) + SCN-(aq) ⇌ Fe(SCN)2+(aq)‚ through spectrophotometric analysis. Acidified solutions (using 0.1 M HCl) of FeCl3 and KSCN were prepared for the calibration of the UV-Vis spectrophotometer (using standard solutions) and the determination of Keq of the Fe(SCN)2+ formation (solutions with unknown concentrations)
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Darsh Patel Dr. Anthony Chem 101-L 20 March 2013 Indirect gravimetric determination of hydrate compound in a mixture Objective To determine the percent BaCL2*2H2O in sample of hydrated mixture. Materials: Aprons‚ goggles Gravimetric balance(electronic weighing scale) Crucible without cover Bunsen burner Lighter flint Iron Support stand Wire mat‚ glove Clay triangle Procedure: Step 1. Support a clean porcelain crucible and its cover on a clay triangle (see Figure 1). Heat them in
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Note: I couldn’t paste in pictures and diagrams so please excuse any large spaces. Planing my investigation Method 1.Firstly I will measure 20ml of Copper Sulphate solution (CuSO4) in a measuring cylinder‚ for precise accuracy‚ and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube‚ for minimum heat loss. (As shown in the diagram above.) 2.Secondly I will measure the required amount of Zinc (Zn) on a weighing scale‚ again for precise accuracy
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Change in Potential Energy Worksheet 1. A 7.3 kg gallon paint can is lifted 1.78 meters vertically to a shelf. What is the change in potential energy of the paint can? 2. A roller coaster car of mass 465 kg rolls up a hill with a vertical height of 75 m from the ground. What is the change in potential energy relative to the ground? 3. If the car in problem #2 starts at rest from the height of 75 m‚ what will its speed be when it is 5 meters from the ground? What is the change in potential
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Aim: To find out the mass of Iron (II) sulphate each ‘Iron tablet’ contains Background Knowledge: ‘Iron tablets’ are prescribed to patients suffering from anaemia. They contain 200mg (0.200g) of iron (II) sulphate FeSO4 We are going to analyse iron tablets to find out how much Iron (II) sulphate they contain. The procedure we will use is a REDOX reaction‚ by oxidising the Fe2+ contained in the Iron (II) sulphate to Fe3+. We will use potassium manganite (VII) as the oxidising agent. The active part
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Calculating the Enthalpy Change of Reaction for the Displacement Reaction between Zinc and Aqueous Copper Sulphate Data Collection and Processing Observations: * Drops of water left on the inside of the measuring cylinder * Hole in the lid‚ possible escape route for gas or splash-back * The polystyrene cup felt warm during the reaction By extrapolating the graph we can estimate what the rise in temperature would have been if the reaction had taken place instantaneously. I can
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Determination of the Waters of Crystallisation/ Water of Hydration‚ In Hydrated copper (II) Sulphate Introduction In nature there are some salts that will have water in their crystalline structure. These salts are commonly known as hydrated salts. Hydrated Copper (II) sulphate is one of these‚ as suggested by the use of the word hydrated in its name. Its molecular structure is shown below. The water that is chemically combined into their structure is called the water of crystallisation.
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Contents 1. Introduction 2 2. Concrete attacks 2 3. Alkali-Silica Reaction – ASR 3 4. Sulphate Attack 5 5. Reference List 8 1. Introduction This report was issued in order to provide an in depth understanding of how a surveyor can differentiate between Alkali-Silica Reaction and Sulphate attacks in concrete when inspecting a building. In order to satisfy the requirements for this report‚ the author will give a detailed description of both kind of attacks‚ different study areas
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