In this lab‚ we changed copper into various forms using different chemicals and chemical reactions. The purpose of this lab is to demonstrate that the product of a chemical reaction depends on what is present at the time of that reaction. This lab also displays how matter cannot be created nor destroyed in a chemical reaction. In a lab‚ you must always make safety a priority in case of an emergency. In our lab‚ we made sure to wear closed-toed shoes as well as goggles at all times. We also performed
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Transforming INDIA By empowerment of the people of INDIA Through Relevant Education & Vocational Training By Krishan Khanna Supported By Printed in India by Sheetal Prints‚ 211‚ Pragati Industrial Estate‚ Dr. N. M. Joshi Marg‚ Lower Parel East‚ Mumbai - 400 011. Published in India by Manifest Publications‚ 308‚ Olympus‚ Altamount Road‚ Mumbai - 400 026‚ INDIA. Copyright ©Krishan Khanna 2012 First Published in India in 1993 ISBN 978-81-906621-0-9 Transforming INDIA was
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Copper is an element that occurs in minor amounts in the earth’s crust. Estimates of average crustal prevalence are on the order of 0.0058 percent by weight. Deposits considered to be economically recoverable at current market prices may contain as little as 0.5 percent of copper or less‚ depending on the mining method‚ total reserves‚ and the geologic setting of the deposit. Here is the flow sheet on how to process copper from Zenith. Copper Process Flow Sheet: Copper ore is first quarried from
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between the end point and the equivalence point is that the end point is just an indicator of when the color changes and titration stops. The equivalence point is when the H+ ions are neutralized by OH- ions‚ which occurs when both are used up in the reaction causing the pH to be 7. The molarity of NaOH from the indicator was exactly .500 M‚ but the molarity for the equivalence point from the second derivative was .688 M. This resulted in a range of roughly 27.3%‚ which is way over the 15% error mark
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6: The Copper Cycle CHEM 101 Lab-M/630 As an investigation of the copper cycle lab group 6 conducted an experiment on 6 October 2014 at Arizona State University laboratory that would demonstrate the cycle of reactions that copper (Cu) can produce when introduced to with other substances/reactant. The purpose of the investigation was to notice the transformation of a specific quantity of copper wire (g) as it undergoes its coordination reactions until a reduction method would yield copper (Cu) again
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3rd‚ 2009 Lab Report #3: Copper Cycle Abstract: The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle‚ copper was present in different forms. First reaction involves reaction between the copper and nitric acid‚ and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated
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In my research of the Fibonacci Numbers‚ I have found that the Fibonacci numbers appear anywhere from leafs on plants‚ patterns of flowers‚ in fruits‚ some animals‚ even in the human body. Could this be nature’s numbering system? For those who are unfamiliar with the Fibonacci numbers they are a series of numbers discovered by Leonardo Fibonacci in the 12th century in an experiment with rabbits. The order goes as follows: 1‚ 1‚ 2‚ 3‚ 5‚ 8‚ 13‚ 21‚ 34‚ 55‚ 89‚ 144‚ 233‚ 377‚ 610 and so on. Starting
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Questionbank Topic 1. Sequences and Series‚ Exponentials and The Binomial Theorem 1. Find the sum of the arithmetic series 17 + 27 + 37 +...+ 417. 2. Find the coefficient of x5 in the expansion of (3x – 2)8. 3. An arithmetic series has five terms. The first term is 2 and the last term is 32. Find the sum of the series. 4. Find the coefficient of a3b4 in the expansion of (5a + b)7. 5. Solve the equation 43x–1 = 1.5625 × 10–2. 6. In an arithmetic sequence‚ the first term is 5 and the
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Trương Thành Nam Hướng dẫn: Ths. Đặng Thị Bích Thảo MSSV: 1400056 Essay project 2 Pierre Robin Sequence Introduction : Pierre Robin sequence (PRS) is a rare congenital defect‚ which was first described by Lannelongue Menard in 1891 as Pierre Robin syndrome. The word “syndrome” then was replaced by “sequence” because the pathogenesis of the condition occurs through a chain of events. The sequence include small jaw (micrognathia)‚ displacement of the tongue (glossoptosis) which consequence to airway
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Does concentration affect the speed of chemical reactions? Problem: We are proving that “concentration” (the amount of reactants) is one of the things that can affect the speed of chemical reactions. We are also finding a way to keep the lid on the film canister for the longest period of time. We are using vinegar and water as reactants and changing the concentration every time to see the difference between the rates of reactions speed. Materials: - 1 graduated cylinder - 1 film canister
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