off of the measuring devices. For this experiment‚ we followed the procedures as indicated in the lab manual. Data Copper Rod Measurements Trial 1 2 3 4 Length (m) 0.601 0.6 0.601 0.6 Diameter (caliper-m) 0.0006 0.00065 0.0006
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CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another‚ the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more elements are present in a compound‚ the formula still indicates the atom ratio. To find the formula of a compound we need to find the mass of each of the elements in a weighed sample of that compound. For example‚
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Effects of Hydration on the Human Body Rebecca St. Clair SCI/241 January 9‚ 2011 Ms. Katherine Jones‚ Ph D Water is an essential nutrient that provides health maintenance by regulating body temperature‚ providing lubrication and shock absorption‚ and is essential to maintain proper physiologic functioning. Over half of the human body weight is comprised of water. Water helps to regulate many human body functions such as: body temperature‚ and the amount of water lost through kidney functions
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Fifteen-year-old Amari loves life in her home village in Africa. She spends her days strolling along the stream‚ daydreaming about her handsome future husband‚ teasing her little brother‚ and avoiding chores. But everything changes the day the pale-faced visitors arrive. Everyone contributes for the celebration to welcome the strangers. Amari helps her mother arrange the food‚ her storyteller father shares his tales‚ her fiancé plays his drum‚ and everyone dances. But then their world shatters
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Determination has helped many well known brands and people become known . One of the most important keys to success is determination. There are many details‚ and aspects from texts‚ but there were three reasons that were evidenced from the articles The business of beanbags‚ Climbing Kilimanjaro‚ and The Mighty Macs that stood out. The first reason is that being motivated can benefit you in many ways. Motivation is a reason to do something‚ or take action. By being motivated‚ Lilian Wairimu Njue
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Laboratory report Aluminum Copper Alloy MSCI 300 – Thermodynamics of Materials Alexandre de Freitas Silveira Eau Claire December 18th‚ 2012. Abstract: At this experiment‚ the composition of an alloy of Aluminum Copper was analyzed via X-Ray Fluorescence. From this‚ it was possible to construct a phase diagram a make some predictions about the possible phases presents at considering the 3 samples used in this experiment‚ the samples prepared at this experiment the sample as delivered
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Chemistry Internal Assessment: Determining the Enthalpy Change of a Displacement Reaction AIM: To determine the enthalpy change for the reaction between copper(II) sulfate and zinc. BACKGROUND THEORY: Bond breaking is endothermic while bond forming is exothermic. The reaction between copper(ll) sulfate and zinc is exothermic as the energy required to form the bonds of the products is greater than the energy required to break the bonds of the reactants. In an exothermic reaction‚ heat is
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Elemental Copper from Copper (II) Nitrate Objectives: Students should be able to… recognize evidence(s) of a chemical change convert word equations into formula equations perform a series of chemical reactions in order to recycle the element copper determine the percent recovery of elemental copper Challenge: How good and accurate a chemist are you? Given a solution of Cu(NO3)2‚ what percentage of elemental copper can you recover from the original solution? Materials: 1 M copper (II)
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Copper Mining in Zambia Norman Mulimbwa Shachile WHUT‚ Luoshi Rd.‚ International students building No.8‚ Wuhan‚ 430070‚ PR China Abstract The mining industry has been the economic and social backbone in Zambia since the first major phase of exploitation of the Copperbelt ’s Cu-CO deposits commenced in the early 1930 ’s. Since that time a wide spectrum of other metalliferous and non-metalliferous resources have been discovered in Zambia and although exploitation of these has been limited‚ they
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Chilean Copper Mine Name XBCOM/275 May 18‚2014 Dr Jose A. Cotay Chilean Copper Mine On August 5‚ 2010 there was one of the worst mining disasters in the history of mining. In the Atacama Deseret one of the largest mines there was a clasp. On this day 33 miners were unaccounted for after they did a head count of all the miners that come out the dust and dirt. The company was not sure if they were alive or dead. The community that these men lived in was grief stricken and their families were
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