Reminder: These notes are meant to supplement‚ not replace the laboratory manual. SN1 Reaction Notes Background and Application Substitution Nucleophilic First Order (SN1) reactions are one of the most common type of organic reactions. SN1 reactions can be used to make a wide variety of new compounds. In this experiment‚ t-amyl alcohol will be converted by a SN1 mechanism to 2-chloro-2-methylbutane. Safety Precautions Concentrated Hydrochloric Acid is 12M. It will cause visible destruction
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Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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complex reactions and reaction sequences‚ where raw materials react together to give the product. Such chemical process often releases energy‚ in the form of heat‚ and the reaction is described as exothermic. Many of these reactions may also evolve gases at high rates‚ and could cause reactor over-pressure. Thermal runaway reaction Runaway reactions are thermally unstable reactions where the heat of reaction can raise the temperature of the reactants sufficiently to accelerate the reaction rate out
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Elimination Reactions ________________________________________ As described previously‚ primary alkyl halides generally undergo substitution reactions with simple nucleophiles by an SN2 mechanism. Secondary alkyl halides‚ often react with simple basic nucleophiles to give a mixture of products arising from both substitution and elimination. As with substitution reactions‚ the rate at which elimination reactions proceed can be proportional to both the concentration of the base and the concentration
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My Reaction to Apollo 13 The movie Apollo13 is great but little kind of boring. Tom Hanks is a great artist! He is my idol. One of his great movie is Forrest Gump. By the way‚ The Apollo13 is America’s third moon landing mission. En route‚ an onboard explosion deprives their spacecraft of most of its oxygen supply and electric power‚ forcing NASA’s flight controllers to abort the Moon landing‚ and turning the mission into a struggle to get the three men home safely. I thought Jim’s wife was his
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A Comparative Essay comparing artist’s views regarding contemporary issues Introduction This essay will be a comparison of my work in comparison to Cindy Sherman’s and another related artist’s work. The essay will explain why they appeal to me and their influences on me. As an artist‚ I want people to visually question my work‚ as I feel there is more of an impact if the work is questionable. I try and make my work somewhat unique and humorous‚ for example in a recent piece about facial expression
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ENGINEERING Reaction Engineering CGC035 / CGC052 Problem Sheet 3 - Fluid-fluid reactions 1. The reaction rate for the heterogeneous reaction A(g) + B(l)→ products is second order according to the expression -rA=kCACB and it is relatively slow compared to mass transfer so it takes place in the bulk of the liquid. Combine the following rate expressions for diffusion through the gas and liquid films‚ -rA=kAga(pA-pAi) and -rA=kAlaCAi-CA‚ with Henry’s law pAi=HACAi and the reaction rate
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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Reaction on Completed Staff Work Many in different organization‚ plans and programs are usually formulated and implemented by top officials‚ and problems encountered were given solutions also. These are the common scenario wherein the burden is placed on one’s shoulder only. Through the implementation and adoption of CSW in an organization‚ these will relieve stress and anxiety to any top officials. The common scenario in many organizations‚ subordinates bring their managers a problem and sometimes
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