Centralia No 5 On March 25‚ 1947‚ the Centralia No. 5 coal mine exploded near the town of Centralia‚ Illinois‚ killing 111 people. The Mine Safety and Health Administration of the United States Department of Labor reported the explosion was caused when an under burdened shot or blown-out shot ignited coal dust. In this paper‚ I plan to discuss Driscoll Scanlan‚ who was the inspector for the district for the area. “Scanlan was a stubborn‚ righteous‚ zealous‚ man of fierce integrity” (Stillman
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The Great Antacid Culminating Lab Purpose: To determine which antacid tablet is the most effective. Materials: 3 different antacid tablets‚ thymol blue‚ droppers‚ pH probe and necessary cables‚ pH probe holder‚ retort stand‚ 1 mol/L HCl‚ droppers‚ five 150 mL beaker‚ mortar and pestle‚ graduated cylinder‚ balance‚ weighing dish‚ stir rod Procedure: 1) Gather all the equipment you will need to do the lab. You will be working in groups of 3 2) Calibrate the pH probe as you practiced the day
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clothing to accessories‚ including perfume. The Chanel No. 5 Juice “I want to give women…a scent that smells like a woman‚ not like a flower‚” Chanel said. In 1921‚ Coco commissioned Russian perfumer Ernest Beaux to create what would become the ultimate Chanel masterpiece and greatest classic perfume of all time—an abstract floral overdosed and overpowered with sparkling yet heavy synthetic chemicals called aldehydes. Chanel No. 5 was ahead of its time as a composition. It was impactful‚ long
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sets of 3 screw-cap test tubes that had each been half-filled with 5% gelatin and 1-mL of the correct dye (either potassium dichromate‚ aniline blue‚ or Janus green) in each of the test tubes. I labeled the 3 test tubes of set 1 with which die they contained and marked them “5 ˚C”. Then with the other set I did the same exact thing‚ except I labeled these test tubes “Room Temperature”. I then placed set 1 of the test tubes in a 5˚ C refrigerator‚ while I kept set 2 at room temperature for a certain
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Saliva Lab Since the amylase enzyme is present in saliva‚ starch digestion begins in the mouth. Salivary amylase changes the polysaccharide starch into many disaccharide molecules of maltase (a simple sugar) which are further broken down into glucose units by maltase enzyme in the As stated above‚ saliva contains the amylase enzyme which begins the breakdown of starches. The efficiency of starch digestion by amylase can be measured by how much simple sugar it produces under
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Lab #1 – Assessment Worksheet Performing Reconnaissance and Probing Using Common Tools Course Name and Number: _____________________________________________________ Student Name: ________________________________________________________________ Instructor Name: ______________________________________________________________ Lab Due Date: ________________________________________________________________ Overview In this lab‚ you explored the common tools available in the virtual lab environment
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Use a study guide only please and note two of the answers are wrong regarding conversions.!! Up to you to figure which ones. Just know its nice to compare answers to see if your on the right track. LAB 1 1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points) a. Eye Wash (2 points) a. The function of the eye wash station is to flush your eyes of any chemicals or other harmful liquids you may have gotten in your eyes. You would
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Period 1 10/14/12 Enzyme lab Enzymes are biological catalysts that speed up the process of chemical reactions. They are also proteins‚ and most enzymes activities occur within organism. They decrease activation energy‚ energy that is needed to start a chemical reaction. Enzymes are substrate specific substrates ending in "-ase"‚ enzymes ending in "-ase". External factors‚ such as temperature‚ pH‚ and concentration of the substrate‚ affect the enzymes activity in the lab‚ pectase and cellulase will
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2218 Electronic Systems and Design HLab02: Op-amp Schmitt Trigger “In this lab‚ we will investigate Schmitt trigger comparator circuit. ” “The pre-lab reading will help you make sense of what you are about to do in the lab. The lab tasks and evaluation and review questions will form the basis of your lab report. See course document on how to write the lab report.” 1.0 Lab Learning Outcomes After completing this lab‚ students will be able to:1. Compare the input and output waveforms for a
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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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