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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data beneath each product and reactant except H20‚ and a summary. The purpose of this experiment is to observe the qualitative aspects of a series of reactions involving copper. Procedure 1.Measure about 1g of solid copper. 2.Place Cu in Erlenmeyer flask and place flask under fume hood. 3.Add dropwise 15M HNO3 until solid copper is completely reacted. 4.Place flask in water bath. 5.Add 4M NaOH slowly until no more solid forms. 6.Mix contents by slowly swirling flask. 7.Place flask back in water
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equation Manipulate: The number of moles equation to get the form you require. When you are confronted by a Titration calculation the first rule is: DON’T PANIC! The Second rule is read through the question very carefully.The Third rule is read through the question carefully again! We are now going to look at a question and hopefully guide the unbelievers (henceforth known as infidels) through a titration calculation. If you know how to do these‚ go straight to the questions at the end.The question:10.0 cm3 of a solution
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Abstract In this experiment‚ the Ksp for calcium sulfate dihydrate‚ CaSO4·2H2O‚ by titrating 4 times a calcium sulfate dihydrate solution with diprotic EDTA‚ H2(EDTA)2-. For each trial we found the Ksp by means of molarities and activities. The results for the Ksp using only molarities was very different than the Ksp using activities. The average Ksp using molarity only was 2.26 x 10-4 and the average Ksp using activity turned out to be 2.31 x 10-5. The actual Ksp however‚ is 3.14 x 10-5. A percent
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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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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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Project Model No: 164 ABSTRACT PRECISE KILLOMETER CALCULATION BY UNDERGROUND CABLE FAULT DETECTOR The project uses the simple concept of OHMs law where a low DC voltage is applied at the feeder end through a series resistor. The current would vary depending upon the length of fault of the cable in case there is a short circuit of LL or 3L or LG etc. The series resistor voltage drop changes accordingly which is then fed to an ADC to develop precise digital data which the programmed microcontroller
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to imagine dancing them. I found that the swirls could serve as a trajectory for different body parts or pathways‚ and the almost lackadaisical way in which he meshed colors inspired a smooth movement quality. One of his painting‚ Fritillaries in a Copper Vase‚ especially stood out to me choreographically. The way in the flowers laid downward reminded me of hands potentially
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UNIVERSITY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY TITLE: ANALYSIS OF COPPER IN BRASS BY UV-VISIBLE SPECTROSCOPY NAME: OPOKU ERNEST DATE: 21ST JANUARY‚ 2014 Page 1 of 9 TITLE: ANALYSIS OF COPPER IN BRASS BY UV-VISIBLE SPECTROSCOPY AIMS AND OBJECTIVES: By the end of this experiment‚ the student should be able to demonstrate the following proficiencies: 1. To determine the percentage of copper in brass by UV-visible spectroscopy. 2. Properly calibrate and use a spectrophotometer
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