Lab 3: Grignard Synthesis Objective: The goal of this lab is to synthesize a Grignard reagent from bromobenzene and magnesium metal in diethyl ether. This same Grignard reagent would then be used to prepare a tertiary alcohol and then purify and characterize the product. Table of Reagents: Name Chemical formula Melting Point Boiling Point Density Safety Hazards Diethyl ether C4H10O -116.3°C 34.6°C 0.7134 g/ml Flammable Bromobenzene C6H5Br -30.6°C 156°C 1.5 g/ml
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2.2 Application of Cu2O nanopowder 2.2.1 Photocatalyst 2.2.2 Solar energy conversion 2.3 Powder formation 2.4 Gas phase 2.4.1 Inert Gas Condensation (IGC) or Gas Phase Condensation 2.4.2 Chemical Vapor Deposition 2.4.3 Laser ablation 2.4.4 Flame synthesis 2.5 Liquid phase 2.5.1 Solvent evaporation method 6 6 7 7 8 9 9 11 11 11 12 12 13 Page ii iii vii viii xii xiii 1 2 3 4 5 pdfMachine iii Is a pdf writer that produces quality PDF files with ease! Produce quality PDF files in seconds and preserve
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Penny Synthesis Essay To “… not ban pennies‚ but merely discourage their use by establishing a system…” It is because I agree with Mark Lewis of Forbes.com‚ that I affirm abolishing the penny‚ yet with some restrictions. In 2001 a United States Representative by the name of Jim Kolbe introduced a proposition to eliminate the penny (United States’ lowest denomination coin). To deeply reason as to why an individual might support this proposition‚ we must look at three different points of analysis
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There is a phantom killer lurking in our homes‚ office buildings‚ and schools. We cannot see it‚ taste it‚ or smell it. In fact‚ according to the Environmental Protection Agency (EPA)‚ it is estimated to cause between 15‚000 and 22‚000 lung cancer deaths per year making it the second leading cause of lung cancer deaths following cigarette smoking (EPA). This phantom is the radioactive gas called Radon. Interestingly radon is a form of radiation that is a natural part of our environment. Radiation
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Joseph Campbell once said that “one way or another‚ we all have to find what best fosters the flowering of our humanity in this contemporary life‚ and dedicate ourselves to that.” The role of human in this world is to help make life better for others. Ideas and actions taken by the characters in The Grapes of Wrath prove the role of humans to help each other is a necessity. Jim Casy is a radical philosopher and a unifier of men‚ he presumably assumes the role of Jesus Christ in the novel. In the
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The current process of selecting nominees is one that is flawed for a number of reasons‚ with lack of consistency being the main reason for the flaws. While the Democratic Party assigns its delegates proportionally‚ the Republican Party has its assignment of delegates vary by state‚ whether it’s winner-take-all‚ proportional‚ or a hybrid system‚ and the percentage of the popular vote in the state needed to win the delegates also varies by state. This lack of consistency usually leads campaigning
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As young people living in a world with advancing technology‚ we need to be cognizant of the effect that technology has on us and our everyday lives. Everyone should be aware that technology- especially our phone‚ is distracting‚ and driving while distracted is dangerous. Texting while driving is hazardous and puts not only you‚ but the people around you in danger. In the US‚ people should be more informed about the effects of using cellphones while driving as it causes 26% of car crashes in America
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In countries such as North Korea‚ it is clear their deceptive government has censored political speeches‚ silenced anti-government expressions‚ and imprisoned any who oppose their policies. If a nation such as the United States deprives its citizens from freedom of speech‚ the public ceases to voice their opinions on the negative actions of the government. Their words and opinions cannot spread to sources such as the media. Soon America would transform from a Democracy into a Dictatorship. Freedom
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As the world has become so electronic and technology driven‚ the United States Postal Service has fallen behind. In the 20th century‚ sending a letter was the norm and people wrote back and forth to friends as “pen pals.” However‚ the world has changed and now friends can instantly communicate at the touch of a button. This transition to electronically communicating has negatively impacted the United States Postal Service due to the loss of business. Therefore‚ it is imperative that the USPS reinvents
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“John took many standardized tests in high school that helped him succeed in his science career.” Basic skills tests might be dull and may feel like a waste of time‚ but it can help in many ways. Basic skills test‚ also known as “standardized tests‚" are tests students must pass in order to graduate. According to scholar Richard P. Phelps‚ “93% of studies of student testing‚ including the use of large-scale and high- stakes standardized tests‚ has found a ‘positive effect’ on student achievement”(Phelps)
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