"Cartesian" is named after the French mathematician and philosopher Rene Descartes‚ who lived from 1596 until 1650. Cartesian diver lab is used commonly in scientific experiments to illustrate principle of buoyancy. The objective of this Cartesian diver lab is to demonstrate Pascal ’s law and Archimedes ’ principles. Observation is the key to conduct this experimental study of the Cartesian diver. First a 2-liter bottle is filled with water to almost all the way to the top‚ then prepare the diver
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Experiment #1 Title: Physical and chemical changes‚ and measurements in the metric system Name: Goh Kian Shen Lecturer: Dr. Anne Kee Hooi Ling Section: Chemistry 107A Date lab was performed: 17 January 2013 Aim: The aim of the experiment is to understand physical and chemical changes of
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Individual solid particles are characterised by their size‚ shape‚ and density. 1.1 Particle shape The shape of an individual particle is expressed in terms of the sphericity F s‚ which is independent of particle size. The sphericity of a particle is the ratio of the surface-volume ratio of a sphere with equal volume as the particle and the surface-volume ratio of the particle. For a spherical particle of diameter D p‚ F s =1; for a non-spherical particle‚ the sphericity is defined as Dp:
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Objectives: 1. To identify the relative densities of some common liquids and solids. 2. To determine the densities of water‚ an unknown liquid‚ a rubber stopper‚ and an unknown rectangular solid. 3. To determine the thickness of a piece of aluminum foil using the density concept. 4. To practice proficiency in performing the following experimental procedures: pippeting a liquid‚ weighing by difference‚ and determining a volume by displacement. Apparatus: Tall glass cylinder‚ glass marble‚ rubber
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take the mean of the two temperatures you have measured as the effective temperature of the water during the calibration. Calculations 1. Find the mean of the four trials. The mean volume can now be determined from the mean mass and the density of water at the temperature you determined in 6 above. However‚ there is a correction to be made for the upthrust of air on the water during the weighing. In normal day-to-day use of balances we neglect this correction‚ but now that we are interested
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C3 0.0711 0.0394 0.0517 i-C4 0.0147 0.0107 0.0127 n-C4 0.0375 0.0274 0.0312 i-C5 0.0125 0.0113 0.0121 n-C5 0.0163 0.0148 0.0156 C6+ 0.3274 0.7721 0.6217 H2O 0.0000 0.0000 0.0000 TOTAL 1.0000 1.0000 1.0000 Relative Density @ 15°C Relative Molecular Mass OBS OBS CALC 0.8265 TOTAL SAMPLE CALC 188 0.6659 Data Summary MOLE FRACTION MASS FRACTION VOLUME FRACTION 0.3274 0.7721 0.6217 79.6 Paraffinic Component Groups
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obtaining an average density & boiling point for my liquid and comparing them with the known densities & boiling points of liquids in the CRC handbook of Chemistry & Physics. I will perform these experiments using three different measuring tools (graduated cylinder‚ burette & pipette) to evaluate the precision of each one. Results: Density 1‚ 2 & 3 calculated by using graduated cylinder to obtain volume. Density 4‚ 5 & 6 calculated by using volumetric pipette to obtain volume. Density 7‚ 8 & 9 calculated
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all there were seven samples‚ namely water‚ isopropyl alcohol‚ coconut oil‚ wooden block‚ marble‚ pebbles‚ and an unknown liquid sample. For the density of water‚ a clean and dry 100ml graduated cylinder was weighed and 50ml of water was added into the graduated cylinder. The graduated cylinder with water was weighed again to get its mass. For the density of a liquid other than water‚ a clean and dry 10ml graduated cylinder was weighed and 5.0ml of the different liquid samples (isopropyl alcohol‚
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Title: Archimedes principle Objective: To use Archimedes Principle to determine the density of an object more dense than water. Introduction: Archimedes ’ principle is a law of physics stating that the upward force (buoyancy) exerted on a body immersed in a fluid is equal to the weight of the amount of fluid the body displaces. In other words‚ an immersed object is buoyed up by a force equal to the weight of the fluid it actually displaces. Hence‚ the buoyant force on a submerged object is the
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Solid Freeform Fabrication of Functionally Graded Materials Abstract: Functionally Graded Materials (FGMs) have a wide range of potential commercial applications which consist of components requiring wear-resistant surfaces such as engine components‚ rocket nozzle and so forth [1]. Solid freeform fabrication (SFF)‚ especially Freeze-form Extrusion Fabrication (FEF) technology‚ an economical method feasible for grading among many compatible plastic‚ ceramic and metal materials combinations
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