part (i) (a)‚ the solid copper(II) nitrate is used to dissolve in a test tube filled with half distilled water. The solid copper(II) nitrate ionize in water to form copper(II) ions and nitrate ion. Hence‚ a blue solution is formed due to the blue copper(II) ion present in the solution. When excess solid is added‚ the solution will become saturated and do not allow any solid to dissolve‚ so excess solid will remain in the solution. This is shows that the equilibrium between solid and aqueous copper(II)
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Ocean county college | SEPERATION OF A MIXTURE OF SOLIDS | DEPARTMENT OF CHEMISTRY | | John Curran | 2/23/2013 | COURSE INSTRUCTOR DR. NANCY MARASHI. | Background: During this experiment students will take a mixture and separate it into its’ pure substances. A mixture is a combination of two or more substance. These substances cannot be combined chemically but more physically. The pure substances are substances that cannot be separated any more by physical means. The students
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to Science. Read Lab 1: Introduction to Science. This lab includes several critical thinking activities introducing the scientific method‚ lab reporting‚ and data collection and management. Then‚ utilize this information to complete Exercise
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SECTION - A 1. Name the technique to separate [1] (a) Salt from Sea – water (b) Butter from curd 2. Define velocity. [1] 3. What do you mean by free fall? [1] 4. Mention any 2 advantages of using Italian bee variety in honey production. OR (a) Identify soluble and solvent in the following solutions: [3] (i) Aerated drinks (ii) Tincture of iodine (iii) Lemon water (b) State the principle of each if the following methods of separation of mixtures
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Laboratory 4: Separation of a Mixture of Solids Numbers 1 to 4 below are not written out in your Lab Manual. They are provided here to help you do your calculations more clearly. 1. Separating out the Iron: Mass of Weighing Dish: ___0.6_______g (Read all masses to the decimal places allowed by the balance/scale‚ typically one or two decimals‚ i.e. a tenth or a hundredth of a gram.) Mass of Weighing Dish plus Solids Mixture: ____7.5______ g Mass of Solids Mixture: ___6.9_______
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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 Thermal Stress Stress Concentration Concept Quiz Copyright © 2011 Pearson Education
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Lab 3 – Separation of a Mixture of Solids Cathy Lab Partners: Chelsea Brooke Sept 4‚ 2012 Chemistry 131A Dr. Vicki H Audia Pelab Questions: Proposed procedure for separation of a mixture: Use physical properties of the 4 substances to separate. 1. Remove iron with magnet 2. Add water to the mixture to melt the benzoic acid and NaCl then filter out sand. 3. Chill the solution and scoop the acid out leaving a salt solution. 4. Boil water away leaving salt. Purpose: The
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Mechanics of Solids [3 1 0 4] CIE 101 / 102 First Year B.E. Degree Mechanics of Solids PART- I Mechanics of Rigid Bodies PART- II Mechanics of Deformable Bodies COURSE CONTENT IN BRIEF PART I Mechanics of Rigid Bodies 1. Resultant of concurrent and non-concurrent coplanar forces. 2. Equilibrium of concurrent and non-concurrent coplanar forces. 3. Centroid of plane areas 4. Moment of Inertia of plane areas 5. Kinetics: Newton’s second law‚ D’Alembert’s principle‚ Work- Energy‚ and
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If the air pressure within it causes the balloon’s diameter to become d = 125 mm‚ determine the average normal strain in the rubber. a) b) c) d) 0.2 0.25 π 0.25 1.25 Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ (cont) 4. What is the unit of strain? a) b) c) d) mm mm/m Micron no unit Copyright © 2011 Pearson Education South Asia Pte Ltd APPLICATIONS Where does the average normal stress occur? Copyright © 2011 Pearson Education South Asia Pte Ltd Copyright
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Surface Tension Properties of Liquids Introduction The purpose of this experiment is to measure and record the surface tension of water and other aqueous solutions using capillary rise method techniques and practicing lab safety. In this laboratory the surface tension of water depends on the concentration of the following solutes; NaCl‚ acetone‚ and sodium dodecyl sulfate (SDS). Intermolecular interactions as well as other phases (solid‚ or air) make a liquid exist. The data collected will show
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