Anaconda Copper

not detected comparing with that of control with different concentration of Zn (Fig. 51). Microscopical examination of this fungus fed with different concentrations of zinc investigated variable sporulation comparing with that of control (Fig. 52). Copper slightly stimulated the growth in concentrations 30 ppm-100 ppm while other concentrations inhibited Penicillium italicum growth and 1000 ppm delayed the fungus growth to 6th day but with a slowly rate (Table 40, Fig.…

Cu Again: Reactions of Copper Lynna Jezek*, Long Nguyen CHEM 111-502 Introduction: The element copper has proven to be of great use to human civilizations through time; from the first bronze smelted by the Sumerians to copper’s practicality in today’s industry-driven world, copper has become essential to human life. Copper’s use in industry (such as its great conductivity of heat and electricity) has driven many scientists to study the Copper Cycle, or how copper behaves as a response to…

rulers could preserve their utopian city, the Kallipolis. The Kallipolis’ divisions of labor were producers, auxiliaries and philosophers. “One man was to do one job, the job he was most naturally suited for.” Therefore, those born to be producers had copper/iron hearts, and these people had temperance. The silver born hearted people were the courageous auxiliaries. And lastly, the gold metal hearts were the philosophers, who were the…

FOR more than two decades Wittenoom in WA’s Pilbara region was a mining stronghold. The small country town which lies around 1400kms northeast of Perth was also, at one stage, the only place in Australia that produced blue asbestos. But when demand for the deadly mineral began to wane and fears of serious health concerns began to emerge, the operation was shut down in 1966. However it was another decade before authorities realised the blue dust that swept throughout the town was extremely…

The rivets and grommets are made of copper and come from a company in Missouri, that acquires it's raw materials from U.S. mines. In 2014 the United States produced 1.37 million metric tons of copper, worth $9.7 billion, making it the world's fourth largest copper producer. Arizona, Utah, New Mexico, Nevada, and Montana are the top five copper producing states. The process of extracting copper from copper ore varies according to the type of ore and the desired purity of the final product. The…

The Copper Cycle Steven Joseph*, Christian Contreras Introduction: This experiment consisted of studying the copper cycle. Along with its overall significance to biological systems, reactions were done in order to test the types of reaction types associated with copper. In addition, vacuum filtration methods and detailed observations were taken on how copper reacts with different chemicals as it is constantly heated and mixed. Towards the end of the experiment the remaining amount of copper is…

Experiment 2: Copper/Iron Stoichiometry Abstract: The purpose of the Copper/Iron Stoichiometry lab was to determine which of the two possible iron sulfate compounds formed when reacting aqueous copper(II)sulfate with solid iron metal. The techniques used in this lab were weighing by difference, quantitative transfer, and vacuum filtration. At the end of the experiment it was found that iron was the limiting reactant and iron(II)sulfate was a product of the reaction between 7.0002g of…

Determining Percent Composition of Unknown Copper Ore Sample Iodine-thiosulfate Method: An Analytical Method The objective of this experiment is to eliminate all interfering species from a sample of unknown copper ore in order to later determine pure copper content. Copper ore can be found in a mineral that contains pure copper and other species that is mined and can later have copper extracted from them (Taher, 1999). To eliminate all interfering species, such as Iron, Arsenic, and…

Nicole is the Ramen spectroscopy expert in her research group. She wondered whether she could use Ramen spectroscopy to study Copper 3 hydroxide vibrations. However, Copper 3 hydroxide is challenging to study due to its reactivity. She proposed the work to her advisor who rejected the idea because "it just doesn 't work". From there, she began diligent research in two parts (1) to prove to her advisor that Ramen Spectroscopy should, in theory, be able to measure the vibrations and (2) to map…

quality. When it comes to their wiring, Scosche uses true AWG (American Wire Gauge) to measure the proper gauge of their wire. This ensures the customer is paying for quality of product. On top of that, Scocche uses oxygen-free copper (OFC) compared to the competition that uses copper clad aluminum mix (CCA). Cutting corners in this industry can have disastrous results. Not using the right gauge of wire can cause an increase in resistance and permanently damage a customer’s amplifier. Having a…