Copper

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    Copper is one of the oldest metals known to man. Copper dating back to ancient time was discovered in Iraq. According to webelements.com, origin of name is from the Latin word "Cuprum" meaning the island of "Cyprus". Copper symbol is Cu. Copper atomic number is 29 and atomic mass of 63.546 amu. Copper is located in the 11th group on the periodic table. Copper is a transition metal, meaning metals that can be stretched into thin forms, such as wire (this characteristic is called "ductility"), and they can also hammered or pressed into a thin sheet (this characteristic is called "malleability"). Transition metals are the largest group of elements on the periodic table. Copper has a discrete kind of color; reddish-orange. The website also explains that copper has a melting point1:1357.77 [or 1084.62 °C (1984.32 °F)] K, a boiling point: 3200 [or 2927 °C (5301 °F)] K and a destiny of solid: 8920 kg m-3 .…

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    Research Paper On Copper

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    You think summer is hot, think again. Although copper is a common metal known to man, there may be a few interesting details that you did not know about the element. Such as how hot you must heat copper before it melts into liquid form, or how the smallest dose of copper could make a major impact on your health. The uses of this metal could open up new opportunities and inspire new innovations that may have not been thought of before. Copper dates back almost ten thousand years and has been a…

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    acid base reaction on a copper wire, called the Copper Cycle. The initial and final mass of the copper were measured and percent recovery was calculated to demonstrate that mass wasn’t created or destroyed. The balanced equations, balanced formula-unit equations, total ionic equations, net ionic equations, and half reaction equations were also determined for their appropriate reactions. In the first step of the cycle, a copper wire was dissolved by reacting it with 16 M nitric acid. A green…

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    Unknown Copper Ore

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    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…

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    percent yield of copper after conducting series of chemical reactions. To study the % yield of copper in the copper cycle, the initial mass and final mass of copper was measured. The chemical reactions involved in the copper cycle are dissolution, precipitation, dehydration, and oxidation/reduction. First, copper was reacted with in a beaker to form (aq) and . The purpose of the dissolution reaction is to convert the copper into solutes in the forms of dissolved components. The was…

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    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…

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    Copper Created Lab Report

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    Was More Copper Created? Harshal Patel* and Isaac Cenoz Chem 111-491 Introduction: Copper is one of the most important and diverse elements found in nature all over the world because it can be chemically reacted with many other elements and compounds. The purpose of this experiment was to identify the different reactions that occurred through the lab and the different types of reactions. Throughout the lab, copper was put through series of reactions to see the different combinations and how its…

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    Introduction Copper is an element that can be typically obtained from copper ore (minerals) in the Earth’s crust(1). The ore is initially mined then goes through processes to recover copper(2). Copper is important as it many chemical and physical properties. Copper is a good conductor of electricity and is malleable (the ability to be bent) which is why copper is used in electrical wiring. It is also used in bronze and brass as an alloying agent(3). Chemists use a sequence of chemical reactions…

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    Lab report Questions What will happen when zinc is placed in copper (II) sulfate? What will happen when copper is placed in copper (II) sulfate? Prediction It is predicted that when you place zinc and copper (II) sulfate a reaction will occur, resulting in a precipitation. The prediction about the copper (II) sulfate and copper is that nothing will happen. Hypothesis It is hypothesised that when zinc is placed in aqueous copper (II) sulfate, a single displacement reaction will occur as the…

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    Percent Copper In Brass Lab Conclusion Emily Oleisky The purpose of this lab was to observe the amount of light a solution absorbs, and use the relationships in the Beer-Lambert Law to determine the quantity of a certain compound within a complex sample. First, the relationships between wavelength, concentration, and absorbance were determined. This lab focused on identifying the absorption of copper in various brass samples, and finding the percent copper in brass. In the first activity of the…

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