FROZEN ROCK-SOLID At General Motors of Canada Ltd.‚ Nick Vanderstoop is in charge of implementing a system that he created to prevent the “erosion of knowledge”. He loves to scare the daylights out of GM executives and managers by telling them a true story about the company. The story goes something like this: Several years ago a worker at the head office of General Motors Canada Ltd. In Oshawa retired. Among the many tasks that were performed by him‚ one was particularly important. Every fall he
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PROCEDURE Part I Setting Up Experiment 2D: Separation of a mixture by Paper Chromatography Objectives: 1. To assemble and operate a paper chromatography apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health
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Experiments in physics lab report Department of Electrical Engineering Isabela State University Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Submitted to: Engr. Rafael S. Ramos Physics12 Professor Submitted by: Joemel L. Baccal BSEE IIA Experiments in Physics Lab Report Joemel L. Baccal Department of Electrical Engineering Isabela State University - Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Abstract In
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conducted several experiments using the Scientific Method. We made observations‚ recorded them and used our observations to propose a hypothesis. The experiments included chemical and physical reactions dealing with torn news paper‚ appearance of rock salt crystals‚ the appearance of sand‚ oil and water on plastic‚ and making iodine in water and mineral oil. We found that all these included four physical changes and two chemical changes. This was important in determining the substance or mixture that dealt
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group) reacts with an alcohol (a compound containing an -OH group). O C R1 O H O + H O C R2 R1 O R2 + H O H acid alcohol ester water Here R1 and R 2 represent groups such as CH3 - or CH3 CH2 -. The reaction type shown above may be called a condensation reaction because the small molecule H 2 O is eliminated from the reactants while the remaining bits of the reactant condense together to give the main product. This reaction may also be called an esterification‚ since
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encompasses 7‚107 islands‚ though only about 2‚000 islands are currently inhabited. With a rapidly growing population and lack of adequate disposal sites‚ solid waste has become a major problem for most medium to large – size cities. When Philippine President Gloria Macapagal – Arroyo took office in January 2001‚ the first act she signed into law dealt with solid waste management systems have posed serious health risk particularly in densely populated areas. In Manila‚ for example‚ the closure of the largest
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Plane and Solid Geometry Formulas ASIAN DEVELOPMENT FOUNDATION COLLEGE Tacloban City Given four sides a‚ b‚ c‚ d‚ and sum of two opposite angles: Prepared by: RTFVerterra 10 sides 11 sides 12 sides 15 sides 16 sides = = = = = decagon undecagon dodecagon quindecagon hexadecagon RADIUS OF CIRCLES Circle circumscribed about a triangle (Cicumcircle) A= (s − a)(s − b)(s − c)(s − d) − abcdcos2 θ s= a+b+c+d 2 ∠A + ∠C ∠B + ∠D θ= or θ = 2 2 The content of this material is one of the intellectual
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between the South China Sea and the Philippine Sea. With a rapidly growing population and lack of adequate disposal sites‚ solid waste has become a major problem for most medium to large-size cities. When Philippine President Gloria Macapagal Arroyo took office in January‚ 2001‚ the first act she signed into law dealt with solid waste management. In recent years‚ inadequate solid waste management systems have posed serious health risks particularly in densely populated areas. In Manila‚ for example
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Abstract This experiment is being done to show Mendel’s rule of dominance that says certain alleles are dominant and others are recessive. To show this‚ we are using tobacco seeds‚ a monohybrid cross comparing only one trait color. We are also showing Mendel’s law of segregation with a Dihybrid cross comparing two traits of color and texture. Introduction Three purposes: 1. To predict the genetic frequency off offspring. 2. To predict the outcomes of genetic crosses
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Purpose: Unknown mixtures will be separated by means of chromatography in which the mixture will be passed in a solution through a medium leaving behind components of the mixture at different rates‚ therefore‚ different spots on the absorbing substance. This will help determine the identity of unknown mixtures. The spot colors on the strip of filter paper and the Rf values of the unknown samples will be compared to those of known samples. To find the position of the spots on the strip of paper‚ we
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