solution formed on litmus paper The solution is an alkali and so turns red litmus paper blue and red litmus paper turns red. f) Which metals on the table i) form coloured compounds? Fe‚ Cu Zn ii) have catalytic ability? Fe‚ Cu Zn iii) show multiple valencies? C iv) are hard? Fe‚ Cu Zn v) are highly reactive? Li‚ Na. K‚ F‚ Cl‚ Br 2. (a) Which of the two metals lithium or rubidium (i) is harder? Lithium (ii) has a higher density? Lithium (iii) has
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Synthesis and Characterization of Zn(TPP) and Cu(TPP) Complexes 1 Project Summary The overall goal of the project is to synthesize two metalloporhyrins‚ (Tetraphenylporphyrinato)zinc(II) and (Tetraphenylporphyrinato)copper(II). Because metalloporphyrins occur naturally in hemoglobin and chlorophyll‚ their study has implications in synthesizing human blood as well as utilizing its ability to convert visible light to energy. In addition to these two applications‚ metalloporhyrins are utilized in
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heyWalt Disney Rahul Chaudhary MBA – E&L A0102112037 Premium1958 Words8 Pages Walt Disney Financing Case study in Derivatives The Walt Disney Company’s Yen Financing GROUP SIX Liang Zhang Xiao Cao Xiang Wang Le Lu 1 / 10 All rights reserved. www.lelu.tk. Contents & Structure Part I. Overview -----------------------------------------------------------------------------------------3 Premium1804 Words8 Pages Pixar and Walt Disney Merger NEW YORK - Mickey Mouse and Nemo are now corporate cousins
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Calculations Mass percent of water in CuSO4·5H2O using experimental data: (mass of water lost / mass of hydrated salt) x 100 (0.658 / 2.009) x 100 = 32.75 % Mass percent of water in CuSO4·5H2O using theoretical data: (90 / 249) x 100 = 36.14 % Percent error using experimental and theoretical mass percentages: (experimental value – theoretical value / theoretical value) x 100 (32.75 – 36.14 / 36.14) x 100 = 9.38 % Average percent water in CuSO4·5H2O using experimental values: (trial 1 % water +
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Copper (II) Sulfate Purpose: The purpose of this lab is to find out how many moles of water there are in one mole of Copper Sulfate (CuSO x HO) and the percent by mass of water in the hydrate. This will be accomplished by heating a determined mass of the hydrate to remove the water‚ and by measuring the salt left over. Introduction: This laboratory experiment will be done to find out how many moles of HO are present per one mole in the hydrate CuSO. A hydrate is a compound that has a fixed number
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Cu Metal Recycling Lab Mr. Nelson – Chemistry Purpose: The purpose of this lab is to carry out an extensive series of reactions based on the element copper. These reactions include; synthesis‚ decomposition‚ single and double replacement. In this experiment‚ recycling will also be introduced. Procedure: See attached Story board. Data and Observations and Data Analysis: Step Word Equation 1 Balanced Chemical Equation Type of Reaction Observations Copper + nitric Cu + 4HNO3
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CU2940 2.4 3.5 4.5 When a conflict arises with a colleague I ensure that I take this member of staff to a private area and arrange to discuss this properly at a relevant time for us both‚ If this arises quickly and this member of staff starts to discuss this in public I would try to calm this member of staff down and explain it’s not the time or place to do this in a respectable manner and move it to an office or an empty room. If the subject was serious I was ask another member of staff to
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F6/7 Chemistry Practical: Enthalpy of hydration of copper(II) sulphate Objective: To determine the enthalpy of hydration of copper(II) sulphate Group size: Individual Introduction This experiment enables an approximate determination of the enthalpy of hydration of copper(II) sulphate to be made. The enthalpy change when one mole of anhydrous copper(II) sulphate is dissolved in water is first determined. Secondly‚ the enthalpy of solution of copper(II) sulphate pentahydrate in water is determined
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According to Figure 4 and 5‚ the moles of Cu initially obtained and at completion‚ differentiated. It was evident that the initial moles of Cu (0.0254)‚ did not regenerate all the amount‚ as 0.0124 moles of Cu was attained. In regards to this‚ the no. moles that was eliminated was approximately‚ 0.013. Respectively‚ in Figure 3‚ a large deviation amongst the initial and final quantity of copper‚ this implies that the rest of the mass that had diminished‚ was greater than the final product. These
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rule when documenting sources is to be transparent. Ask yourself whether you could find the passage/image/publication/web site address with the information you have provided. To download a full guide on using the CU Harvard Reference Style‚ visit www.coventry.ac.uk/caw and follow the ‘CU Harvard Style’ links. The Harvard Reference Style is a simple referencing system used internationally by scholars and researchers. There are two elements: I. In-text citations: In the body of your paper‚ give the
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