Respectively‚ in Figure 3‚ a large deviation amongst the initial and final quantity of copper‚ this implies that the rest of the mass that had diminished‚ was greater than the final product. These findings correlate to Figure 2 calculations as‚ the % yield was reasonably insignificant of 49.12%. The initial mass of Copper was‚1.598g; whereas‚ the final amount of copper was‚ 0.785g. This suggests that the 0.813 g of copper could have transitioned into Hydrogen gas‚ and therefore contradicting the hypothesis
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Abstract: The purpose of this lab was to synthesize triphenylmethanol from benzophenone and bromobenzene by the formation of a Grignard compound with the reagents bromobenzene and magnesium metal. The bromobenzene was first transformed into the Grignard compound and was then reacted with the benzophenone to make the final product. The mixture was then mixed with sulfuric acid and the organic layer was extracted via a separatory funnel. The mixture was then recrystallized from methanol and was allowed
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Synthesis of Methyl Stearate The purpose of this lab was the convert liquid methyl oleate to solid methyl stearate by catalytic hydrogenation. Firstly‚ we produced hydrogen gas using solid mossy zinc and sulfuric acid. Using the hydrogen produced in the previous reaction‚ we were able to convert the liquid methyl oleate to solid crystals of methyl stearate. A mineral oil was also used to bubbler was used to maintain the hydrogen pressure slightly above the atmospheric pressure and to prevent back-diffusion
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Determination of Trace Amount of Copper and Zinc in an Aqueous Solution by Atomic Absorbance Spectroscopy Abstract: The purpose of this experiment is to analyze a sample containing copper and zinc in trace amounts‚ where standard addition method was used and the instrument used is the atomic absorbance spectroscopy. The amount of copper obtained was 0.569 ppm ± 0.015 and for zinc we obtained 0.42 ppm ± 0.0027. Introduction: This method implies the excitation of particles in the solution sample
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At present‚ the raw materials to refine copper in China mainly are towanite‚ chalcocite‚ bornite‚ malachite and etc. According to the technical conditions of smelting‚ the copper ore can be divided into three classes based on the proportion of copper oxide and copper sulphide‚ that is‚ sulfide ore‚ which contains less than 10% copper oxide；oxidized ore‚ which contains more than 30% copper oxide; mixed ore‚ which contains 10%~30% copper oxide. Copper is one of earliest metals that be found and used
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"One person’s craziness is another person’s reality"(Tim Burton). In this quote‚ Tim Burton is pointing out that people have our own reality. Philosophically‚ reality is whatever we think or perceive. There is no true or real perspective. Our perspective depends on our morals and beliefs. All our life‚ we perceive knowledge and information through different forms of language. Hence‚ our perspective is also limited by the language. Language is one of the unique things that people have. Language puts
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People should savor the experience at hand rather then consume material things. In Mark A. Burch’s story “The Technology of Simplicity” and Gilles Pinette’s poem “A Bedtime Story”‚ both of the protagonists of the passages‚ Mark and George Longarrow‚ are represented as examples of the individuals who would rather savor the experience then consume material things. In “The Technology of Simplicity”‚ the writer is conscious of the materialistic world. While spending his time with his children during
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1.TITLE: To prepare isopentyl acetate (isoamyl acetate) 2. AIM: To make an ester referred to as banana oil from acetic acid and isopentyl alcohol 3.THEORY: This ester is often referred to as banana oil‚ since it has the familiar odor of this fruit O O CH3 H+ CH3 CH3C OH +
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Moral obligations can be seen a variety of different ways‚ depending on the person. Some may think it is a person’s moral obligation to submit to a law even if they believe the law is wrong. Others think the opposite‚ if a person believes something is unjust why would they follow it. Everyone has a different point of view and after reading The Scarlet Letter by Hawthorne‚ The Letter from Birmingham Jail by Martin Luther King Jr.‚ Laws Scarlet Letter by Korobkin and Lyceum Address by Lincoln‚ it is
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Scale Size Analysis What’s it like to be as small as a fly? What’s it like to be as big as an elephant? In a matter of scale‚ the perspective of life differs dramatically between the large and the small. The things we see in nature every day‚ sometimes it makes me think we live in a strange world. The similarities between “Joyas Volardores” and “A Matter of Scale” are that they both go in depth with nature. In “Joyas Volardores‚” Doyle talks about the heart of a hummingbird and a blue whale
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