Experiment 1: The Effects of Coal Mining Coal mining‚ particularly surface mining‚ leads to large areas of land being temporarily disturbed. The mine workings collect and conduct water that is in contact with the widespread pyrite‚ a mineral that produces iron and sulfuric acid when exposed to air and water. In this lab‚ you will see first-hand the reasons why mine drainage can be harmful to the local drainage system if left untreated. Materials: (3) 100 mL Beakers 1 tsp. Crushed pyrite 1 tsp. Activated
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Derricka Joe Period 5 1 Oct.‚ 2014 Lab Experiment One: Physical Properties Lab Analysis: For our first unknown‚ we observed the color and odor of the substance. The substance was a clumpy‚ white‚ crystal-like substance and it smells like new plastic. When we tested the solubility in water it resulted insoluble and in ethanol it resulted soluble. This substance could not be tested for electrical conductivity because the water was insoluble. We then tested for the PH value and it was neutral. The
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Lab 5.3 SPRINGS- HOOKES LAW Group member: Submitted by: Submitted to: Class: Due: Lab 5.3 SPRINGS- HOOKES LAW Purpose: To study the characteristics of a spring. Hypothesis: With an increase in weight there will be a directly relatable increase in spring length. Additionally each spring will increase to different expected lengths. Materials: -Light spring -Dense spring -Brass spring -Masses -Ruler
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Dr. Reddy’s Laboratory Ltd Swapnil Gosavi N Karimi Padmanabham MVS Prasad P Ansari 1. Reasons for successful performance of Dr. Reddy’s can be described in 2 parts viz Pre FY 2000 Era and Post 2000 Era. Pre 2000 Era • Dr. Reddy’s formed a chemical based company named Dr. Reddy’s Laboratories to manufacture and supply active pharmaceutical ingredients to domestic drug companies by identifying a potential opportunity to do business in the chemical sector. This gave Dr. Reddy’s
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Experiment #4 (10/31/14) Lab Review Objective To introduce the basic molecules of life and to test for their presence in different substances. Introduction Macromolecules are in all forms of life. These organic compounds are carbohydrates‚ lipids‚ proteins‚ and nucleic acids. These are monomers and they link together into long chains that form polymers. Different reagents can be used to find the presence of these macromolecules. Proteins are made of carbon‚ hydrogen‚ oxygen‚ nitrogen‚ and sometimes
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“Dr. Heidegger’s Experiment”: A Glimpse into Nathaniel Hawthorne’s View Being a classmate of with such greats which included future president Franklin Pierce and future poet Henry Wadsworth Longfellow one could make the assumption that Nathaniel Hawthorne would be greatly successful as well. A great writer too many‚ Nathaniel Hawthorne has become one of America’s greatest writers. Hawthorne was a Novelist and short story writer and a central figure in the American Renaissance. He was most known
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products produced. The uncertainty of this this measurement is ± 1 product. In order for this experiment to be controlled‚ many variable were identified and held constant. If these variables were not to be held constant than the findings of this experiment would be meaningless because there would be no way of desiring if the independent variable was the cause of the changes which were recorded In this experiment‚
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In "Dr. Heidegger’s Experiment‚" by Nathaniel Hawthorne‚ the magic book and dust are symbols that help illustrate Hawthorn’s theme of how people should lock their past away and always work for the future. When the four guests drink the fountain of youth Dr. Heidegger is experimenting whether people have learned anything from their earlier years in life. Overall the reality of life will emerge and the choice of resisting or going with the flow will surface. One symbol is the magic book‚ which is
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water‚ it will affect the swimming speed of the paramecium. The various students groups have individual experiment of how dose NaCl affect swimming speed of Paramecium‚ but the experiment did not show the result clearly to students. Therefore‚ after they finish the presentation‚ most of the students want to find out the chemical NaCl increases swim speed of Paramecium. Experiment Design The experiment prediction is if we add 4mL of Paramecium to 25mL of 0.2M NaCl and 225mL of Dryl’s solution‚ then Paramecium
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Experiment E: Post lab Natasha Buckiewicz (130361780) IA: Matt Halloran Due: November 26‚ 2014 1. This experiment followed GCP number 8 which is reduce derivatives. This experiment did not use unnecessary derivation since the reaction was not modified in any way. No additional reagents were required so it did not generate a lot of waste. 2. Safer solvents and auxilaries (GCP #5) was not used in this experiment since the experiment used a solvent to complete the reaction. The reaction used both
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