Tutorial 1: Atomic Structure and Bonding in Solids 1. (a) Cite the difference between atomic mass and atomic weight. (b) Silicon has three naturally-occurring isotopes as shown in the table below. On the basis of this data‚ confirm that the average atomic weight of Si is 28.0854 amu. |Silicon Isotope |Natural Abundance |Atomic mass of | | | |isotope (amu) | |28Si |92.23 % |27.9769 | |29Si
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Experiment 1: Mixtures Aim: To develop an understanding of different types of mixtures including solutions and to examine the different solubilities of some solutes in two solvents: water and ethanol Procedure: Refer to Experiments Book Pg 13 Results: Part A- Mixture Observations Classifications 1 100% Orange Juice There were suspended pulp in the juice Heterogeneous Mixture 2 100% Apple Juice Clear solution Homogeneous Mixture 3 Solder Uniform mixture Homogeneous Mixture 4 Fruit Cake Chunks
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Should there be Separate Sex Classrooms? Emily Dodson 5/1/11 Period 7 In 2000‚ a concerned principal at Thurgood Marshall Elementary school in Seattle Washington was alarmed by the amount of office referrals he was seeing daily as well as the poor standings his school was in‚ in comparison to national standards. Through one simple change he reported: “Overnight. The change in the atmosphere happened overnight.”(Wright). There was no need for new teachers‚ new kids‚ or a new curriculum
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Pakistan and Islamic Studies Project Report Pak-Indo Separation Group Members * EE123016 Waqas Akhter * EE123117 Hina Ashiq * EE123003 Samina Khan * EE1230054 Irfana Altaf * EE123006 Usama Rehman Submitted To:Sir Hassaan Contents THE INDO-PAK PARTITION 4 Introduction: 4 Main Focus: 4 Map of Indian empire: 4 What was the partition? 5 Main Cause Of partition:- 5 Chart : 6 Problems during partition:
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Separating a Mixture Aim: To separate the components of a mixture of sand and salt. To carry out a gravimetric analysis to calculate the percentage of both components. Equipment: * Electronic Scale | * Evaporating Basin | * Beaker | * Bunsen Burner | * Glass Stirring Rod | * Filter Funnel | * Wire Gauze Mat | * Filter Paper | * Heat Resistant Mat | * Conical Flask | * Safety Glasses | * Tripod | * Matches | Tongs | Risk Assessment:
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02TTB204 Mechanics of Solids Part B Lab Buckling of Struts 1. Introduction The task was given to obtain the buckling stresses for pin-ended steel struts of various slenderness ratios and compare with theoretical predictions obtained using the Euler and Rankine-Gordon equations. 2. Theory The method of obtaining the buckling stresses followed was to use data show in Appendix A. From the record of applied load‚ P‚ against deflection‚ δ‚ a Southwell plot of δ against
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Chapter Objectives Understand how to measure the stress and strain through experiments Correlate the behavior of some engineering materials to the stress-strain diagram. Copyright © 2011 Pearson Education South Asia Pte Ltd In-class Activities 1. 2. 3. 4. 5. 6. 7. Reading Quiz Applications Stress-Strain diagram Strength parameters Poisson’s ratio Shear Stress-strain diagram Concept Quiz Copyright © 2011 Pearson Education South Asia Pte Ltd TENSION AND COMPRESSION TEST Copyright
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Chapter Objectives To determine the deformation of axially loaded members. To determine the support reactions when these reactions cannot be determined solely from the equations of equilibrium. To analyze the effects of thermal stresses. Copyright © 2011 Pearson Education South Asia Pte Ltd In-class Activities 1. 2. 3. 4. 5. 6. 7. 8. 9. Reading Quiz Applications Elastic deformation in axially loaded member Principle of superposition Compatibility conditions ‘Force method’ of analysis
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Genevieve Sierra Chemistry seg. 2 June 15‚ 2014 05.05 mixtures and solutions: Lab report: outline Ink chromatography Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates. It is used to separate substances. Examples of chromatography are finger-printing‚ medicines‚ and separating/ testing histamines. http://www.biotecharticles.com/Agriculture-Article/Applications-of-Chromatography-1299
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1.) the diagonal of a rectangle is 25 meters long and makes an angle of 36 degree with one side of the rectangle. Find the area and the perimeter of the rectangle. 2.) A side of a square is 16 inches. The midpoints of its sides are joined to form an inscribed square. Another is drawn in such a way that its vertices would lie also at the midpoints of the sides of the second square. This process is continued infinitely. Find the sum of the areas of these infinite squares. 3.) A rectangle and a
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