reactions. The firsts reaction involved adding hydrated copper (II) sulfate in water. The initial and final temperatures were recorded‚ and the ∆T of the trials were calculated. As the reaction was endothermic‚ which means it absorbs the heat‚ the temperature goes down and therefore the ∆T of the reaction is positive. The table below represents the information about the experiment: Data collection and processing of the dissolution of hydrated copper (II) sulfate ΔH/mol of the solution was calculated
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the empirical formula for hydrated copper sulfate. In doing this lab‚ one was able to see the gradual change in the composition of a hydrate into an anhydrous salt. The lab was carried out with numerous steps. First‚ one had to safely prepare by putting on goggles. One then had to wash and heat the dish with the flame for about three minutes. After allowing the dish to cool‚ one had to weigh the evaporating dish and record the weight. Two to three grams of copper sulfate hydrate was then added to
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Identification and Evaluation of Alternatives The following alternatives to Penny Thomas’s Marketing plan decisions incorporate aspects of Target Market‚ Store Location‚ and Promotional Campaign. Thomas’s alternatives contain: 1. Target Market a. Families b. Young Adults c. Women 2. Store Location a. Vaughan b. Toronto Annex Area c. The Beaches d. Oakville 3. Promotional Campaign a. Toronto Star b. Now Magazine c. 104.5 Chum FM
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reacted aluminum foil with a copper chloride solution‚ and determined the amount of metal that should be produced‚ given the amount of aluminum used. First‚ we obtained a piece of aluminum with a mass of 0.809 g‚ and reacted it with 100 mL of Copper II Chloride‚ after heating the solution. Then‚ we filtered out the copper separated in the reaction using filter paper‚ massing 0.751 g. Once all the solution was filtered‚ we massed the new filter paper filled with copper‚ after letting it dry overnight
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Resistivity of Copper Wire of Different Lengths In this report I will be writing about the experiment I will conduct on copper wire of different lengths. The dependent variable I will be measuring is the resistance of the Copper wire. To do this experiment‚ one needs to obtain measurements with a high degree of accuracy‚ taking care of the equipment they use and measuring each value to a certain degree of accuracy for all results. The problem with measuring the resistivity of Copper wire is due to
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the more Benedict’s solution (copper sulphate) will be used up. * The precipitate is filtered out then the concentration of the remaining solution can be measured. * This will tell you how much Benedict’s solution has been used up allowing you to estimate the concentration of reducing sugar in the original sample. How Does A Benedict’s Test Work? Benedict’s Solution is a method to determine glucose levels in people suffering from diabetes. It has copper sulphate in it‚ which reacts with
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molecules that are in the hydrate. Copper(II) sulfate pentahydrate‚ or CuSO4 * 5H2O‚ is a ratio of one copper sulfate to five (penta) molecules of water. Copper sulfate pentahydrate is a blue hydrate while anhydrous copper sulfate (CuSO4) is white. To get anhydrous copper sulfate‚ copper sulfate pentahydrate must go through an endothermic reaction and have all of its water molecules evaporated. It then becomes the white‚ flaky‚ and chalky material anhydrous copper sulfate. Adding
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North American Electro-Deposited Copper Foil Jonathan Blaber Prof. Warren 09 December 2010 Table of Contents: 1) Introduction 3 2) Supply 4 3) Demand 6 4) Equilibrium 8 5) Neighboring Markets 9 6) Competition 10 7) Imperfections
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of zinc with Copper 2 sulfate producing copper and zinc sulfate. How would I solve for delta H? In the second experiment we are trying to determine delta H for the hydration of anhydrous copper 2 sulfate. If anhydrous copper 2 sulfate powder is left in the atmosphere slowly absorbs water vapour giving the hydrate solid. The enthalpy change will need to be determined when 0.025 mol of anhydrous copper sulfate is dissolved in 50mL of water. The enthalpy change of the hydrated copper sulfate when
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hydroxide and copper (II) sulphate solutions 1. Add 2 cm3 of the liquid food sample* to a clean‚ dry test tube 2. Add 2 cm3 of Biuret Reagent. Alternatively: * Use sodium hydroxide solution and copper sulphate solution instead. Add 1 cm3 of sodium hydroxide solution (40% or bench solution) and 1% copper (II) sulphate solution dropwise – drop by drop - to the food sample * Use Fehling’s A and B solutions instead. Fehling’s A and B should be freshly prepared. Fehling’s A is copper (II)
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