Title: Zinc and Copper II Sulfate Lab Purpose: To determine which mole ratio of Zinc and Copper II Sulfate produces the greatest temperature change in degrees celsius. Background: This experiment will be looking for color change‚ temperature change‚ and precipitation change. Some background knowledge I know is how to balance equations. I also know side effect of a chemical change‚ in this experiment there was a color and temperature change. Other background knowledge is using and applying the
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Installing 70/30 copper nickel (cuni) pipe sometimes can be a test of human patients‚ mechanical knowledge‚ and dexterity. It is‚ however‚ well worth the effort‚ because once you complete the job whether you’re a novice or connoisseur of the art you gain a sense of pride for a job well done. Additionally‚ you will have confidence in knowing that your pipe will stand the test of time and vigorous challenges they’re used for. The only problem that comes with working with 70/30 cuni pipe is‚ having
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There were 2 in particular that looked different; S and R. The R colonies has rough surface whereas the S colonies have smooth surface. Intrigued by the experiment‚ Avery‚ MacLeod and McCarty decided to reaffirm Griffith’s experiment to find the transforming “principle”. Griffith used mice as a test subject‚ Avery and his colleagues this time used test tube assay. 1. Detergent was used to lyse the heat-killed S cells in which 2 layers of component were shown which was cellular debris below and lysate
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Moment of Inertia and Rotational Motion Garret Hebert PHY 2311 Tues 1:00 garret.hebert@hindscc.edu Abstract: During this lab we will study what rotational Inertia is and how different shapes of masses and different masses behave inertially when compared to each other. We will specifically study the differences of inertia between a disk and a ring. We will use increasing forces to induce angular acceleration of both a disk and a ring of a certain mass. We will then then measure the differences
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Chilean Copper Mine Collapse BCOM/275 4/14/14 Randall Savely August 5 2010‚ 33 miners were trapped 2400 feet underground in a northern Chilean copper mine. For 17 days there was no way of knowing if any of the miners were still alive. A drill sent down by a rescuer came back with a message from the workers notifying them that they were all alive‚ but limiting in supplies. Rescuers then planned on sending supplies‚ such as‚ food‚ water‚ medicines‚ etc‚ expecting several
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Richmonde Zegbe CHM111 Anita Mohan 03-11-2013 Experiment: Chemical reactions‚ and Equations Materials: 3 mL of copper(II) sulfate solution. 5 mL of 6 M HCl piece of zinc wooden splint test tube Bunsen burner 3 mL of zinc chloride solution. pentahydrate distill water
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Pre Lab 1a. Hydrated compound: ionic compound which contain water molecules inside their crystal lattice. The water is not chemically bonded to the crystal in any way and can be extracted by heating the compound. 1b. Anhydrous compound: a compound without water. 2a. The dot means that there are water molecules present in the crystal lattice in a specific ratio. 2b. For every mole of copper sulfate‚ there are five moles of water. 2c. The molar mass of copper (II) sulfate is 159.61 grams/mol
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Chilean copper mine collapse Latasha Mcclure BCOM/275 September 26‚ 2012 Kwanis Nelson Chilean copper mine collapse On August 5 the Minera San Esteban Company regretfully announces that part of one of our mining sites has collapse. Leaving 33 of our workers trapped underground (Weik‚ 2010). It is not yet clear what caused the roof to collapse the company will launch a thorough investigation (Parry‚ Rettner‚ 2010). The Chile copper mine collapse is very stressful for all parties involved
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Chilean Copper Mine Collapse Sabrina Green BCOM/275 Week 4 Celeste Bajorek Chilean Copper Mine Collapse On Thursday‚ August 5‚ 2010‚ the collapse of one of the shafts in the Chilean copper mine left 33 workers trapped approximately 300 meters underground. Rescue efforts began at once‚ but just two days later another collapse in the mine halted the efforts of the rescue crews for many hours (Weil‚ 2010). With such a devastating situation‚ the company should take
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Period 12 Chemical Aspects of Life & Spit Lab ABSTRACT: The objective for the Spit lab was to test two different types of crackers for the presence or absence of starch and of reducing sugars. Also‚ to test the chewed cracker‚ the one that didn’t have a reducing sugar‚ for the presence or absence of a reducing sugar with the saliva in it. Adding on‚ another part of the objective is to determine the effect of amylase on starch. For the Chemical Aspects lab‚ the objectives were to test for the presence
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