detrimental. The purpose of this lab is to
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Centralia No. 5: A Mine Disaster No One Stopped The Centralia Mine opened in 1907 and remained free of fatal accidents for decades (Walker‚ 2006). By the 1940’s mine inspectors began reporting excessive coal dust in the mines and also provided recommendations. In March 25‚ 1947‚ the Centralia No. 5 coal mine exploded near the town of Centralia‚ Illinois‚ killing 111 people. The explosion was caused when an under burdened explosive detonation ignited coal dust. The explosion of this mine should
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February 20th‚ 2014 Lab report 4 Abstract This pBlu lab had for purpose to present the changes of the strain of E. coli bacteria due to new genetic information being introduced into the cell. In this experiment we are freezing and heat shocking the E. Coli bacteria that is then forced to take the plasmid DNA. The E. coli then transforms the pBLu plasmid‚ which carries the genes coding for two identifiable phenotypes. After following the Carolina Biological steps our lab worked well and we able
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Lab 2 Physics 190 Acceleration “g” Due to Gravity – Method 2 Introduction Tonight we will measure the acceleration due to gravity again. This time however‚ we will collect more data and the analysis will be different. We will first fit the data using a second order polynomial. Recall for a mass falling from rest‚ that 1 (1.1) y a yt 2 2 Suppose a mass falls through n successively greater displacements‚ each time starting from rest. The displacements can be expressed a 2 y y t ;
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In the novel Slaughterhouse-Five or the Children’s Crusade by Kurt Vonnegut‚ the story of Billy Pilgrim is used to explore various themes about life and war. Vonnegut’s tragic war experiences in Dresden led him to write on the horrors and tragedies of war. Vonnegut’s connection with Billy and the other characters allows him to discuss human reactions to death and traumatic events. Vonnegut uses his characters‚ in particular Billy Pilgrim‚ to portray his beliefs. An antiwar feeling‚ shown
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PR OCEDURE Before beginning‚ set up a data table similar to the Data Table: Experiment Results in the Lab Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium
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Institute Physics Course 2014 - Rocket Lab Report Title: RockSim and Electronic Altimeter Measurement Techniques Name: Scarlet Henriquez Email: scarletpatricia94@aol.com LAB SESSION ___8____Assignment _____7_____ Due Date: ___7/8/14______ Objective: Launch a smaller rocket to learn how to compare RockSim predictions (computer based) to an actual instrument measurement carried by the rocket (Electronic Altimeter). This Lab shows how better the electronic measurement
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original state and the percent of the hydrate recovered was calculated by using the mass of the rehydrated sample by the mass of the original hydrate and then multiplied by 100%. Data Presentation & Analysis Table 1: The data was collected from the lab experiment. Sample calculations are shown. Mass of beaker with sample 30.765g Mass of empty beaker 30.263g Mass of sample .502g Mass of beaker with sample after 1st heat 30.661g Mass of beaker with sample after 2nd heat 30.657g Heating mass
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H2O (l) (x-1) ∆H=-4.09 kJ/mol (x-1) -54.0+4.09=-49.9 NH3+ + H+ → NH4+ =- 49.9 kJ /mol (-49.9- -26.2)/-49.9 x 100 =47.3% Lab Questions: Pre: 1. The change in thermal content in a reaction 2. The amount of energy needed to change one gram of a substance 1 degree C 3. (50 mL)(1.02 g/mL)(4.18 J/g C)(25.3-21.4) = 830 J 4. 830J+8.20J/g C(25.3-21.4)= 860J 5. .25L(.6mol/1L)+.25L(.L/1mol)= 0.3mol AB 830J/.3mol(1kJ/1000J)= 2.7 kj/mol Post 1. Calorimetry is the measure of heat flow. Heat
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Centralia No. 5 PAD 500- Modern Public Administration April 23‚2014 On March 25‚ 1947‚ a deadly coal mine explosion rocked the calm‚ peaceful town of Centralia‚ IL. During World War II‚ this mine provided coal to the war effort. A charge ignited built up coal dust and caused the explosion. This explosion should have surprised no one. Many public sector safety professionals from state and federal agencies knew of the hazards as a result of inspections‚ union complaints and
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