compounds (solutes) tend to be more soluble in hot liquids (solvents) than they are in cold liquids. If a saturated hot solution is allowed to cool‚ the solute is no longer soluble in the solvent and forms crystals of pure compound. Impurities are excluded from the growing crystals and the pure solid crystals can be separated from the dissolved impurities by filtration. (orgchem.colorado.edu) A desirable solvent for crystallization has the following properties: 1) dissolves the solute readily at an elevated
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Marriott Corporation Evaluating the cost of capital 1. What is the weighted average cost of capital for Marriott Corporation? 1 (a) What risk-free rate and risk premium did you use to calculate the cost of equity? R (f)‚ or risk free rate used for calculating cost of equity was the Geometric Mean (GM) for LT US govt. bond returns (Exhibit 4). We used the overall GM of 1926-1987 of 4.27%. This is because this is the period that Marriott has been in operation and would be a good reflection
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A PAPER ON “SMART MATERIALS:A NEW TREND IN TECHNOLOGY” PRESENTED BY‚ SAHIL G. GOVINDWAR. govindwar.sahil@gmail.com Contact No: 7709575108. BABASAHEB NAIK COLLEGE OF ENGINEERING‚ CIVIL ENGINEERING DEPARTMENT. PUSAD. . CONTENTS . Sr. No. | Title | Page No. | 1 | Abstract | 1 | 2 | Introduction | 1 | 3 | Classification | 2 | 4 | Advantages and Disadvantages |
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on your direction with help of an arrow and make your Miller indices consistent with that direction. 12 3 First three peaks in a powder x-ray diffraction pattern from a cubic crystal appears at Bragg angle =13.63‚ 22.63 and 26.82 when CuK radiation with a wavelength of 1.54 Å is used. Determine the structure and lattice parameter of the material. 12 4 Iron changes from a low temperature BCC phase to a high temperature FCC phase upon heating above 910C. Determine the % increase or
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DATA AND RESULTS Substances Treatment Observation Rapid cooling Slow cooling Benzoic acid + NaCl + congo red Heat and filter Colorless solution‚ Coarse crystals Colorless solution‚ Fine crystal Crystallization is a highly effective method for the purification of organic substances‚ provided that the physical properties of a given compound permits its purification in this manner. Solid organic compounds when isolated from organic mixtures or reactions are seldom pure; they are usually contaminated
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Lab Report 3: Electrical Properties of Ceramic Materials Lab III: Physical Properties of Materials By Will Paxton 3/5/07 Abstract The electrical properties of 5 different samples were studied. Characterization of these samples was through the dielectric properties‚ as this is a very important step. The capacitance was measured for each sample incrementally while heating them up to 135ºC. In a second part to the experiment‚ piezoelectric samples were studied‚ and their piezoelectric coefficient
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Lab 5 –Cell Structure and Staining using Microscopy Instructions: Please download this MSWord document to your computer and answer the questions as asked. Then save the document and upload it to Bb using the Assignment feature provided. This assignment is worth a total of 100 points – there are 20 questions worth 5 points each. NAME Buket Rembert In Lab 3 you were introduced to microscopy. In this lab you will be adding to that experience by reviewing the differences in cell structure for Prokaryotes
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UNIT-I 1) Write a program to illustrate bitwise operators. 2) Write a program to print all the alphabets and their equivalent ASCII values. 3) Write a program to calculate the sum of squares of first n natural numbers using while loop. 4) Write a program to illustrate short hand operators used in C. 5) Write a program to print the multiplication table in the following format. 1 1 2 3 4 5 2 2 4 6 8 10 3 3 6 9 12 15 4 4 8 12 16 20 5 5 10 15 20 25 1 2 3 4 5 6) Write a program to calculate the
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ANSWER Paragraph 1 The polymorphs involved are the halides in tetragonal rutile (TiO2) structure and the halides in so-called calcium chloride structure. As the name implies‚ the unit cell of halides in tetragonal rutile structure is tetragonal‚ with the lattice parameters a=b≠c and α=β=γ=90o. It belongs to the space group P42/mnm. On the other hand‚ the unit cell of halides in calcium chloride structure is orthorhombic‚ i.e. a≠b≠c and α=β=γ=90o. The space group of this CaCl2 structured polymorph
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the message is more then what the words say. The idea of modularity gave rise to the letterpress technology and also influenced the shape of graphic design‚ establishing principles that were crucial to later industrialization. Beatrice Warde’s Crystal Goblet‚ through extraneous metaphors‚ proposes the idea the good typography is typography that is invisible‚ in that the type should adhere to the readers expectation so as not disrupt their immersion in the content. The basis of this idea is that
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