EXPERIMENT 1: REACTIONS OF ENOLATE IONS WITH CARBONYL GROUPS Aims In this experiment we used two techniques for the reactions of enolate ions with carbonyl groups. One technique used was Doebner reaction and the other technique used was Claisen-Schmidt reaction. Therefore the aim of this experiment is to synthesize trans p-methoxycinnamic acid and to synthesize dibenzalacetone via an aldol condensation reaction between acetone and benzaldehyde. The products would be recrystallized using ethanol
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| Chemistry Lab Report | Constructing Heating/Cooling Curve | | Salman Ishaq 12-E | 1/27/2013 | | BACKGROUND As energy flows from a liquid‚ its temperature drops. The entropy‚ or random ordering of its particles‚ also decreases until a specific ordering of the particles results in a phase change to a solid. If energy is being released or absorbed by a substance remaining at the same temperature‚ this is evidence that a dramatic change in entropy‚ such as a phase change‚ is occurring. Because
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Heating Curve Project There are two parts to the project. EVERYONE MUST COMPLETE PART ONE. We can put our personal touch on part two. 1. Label heating curve graph of a substance other than water (NOT WATER‚ make up a substance if you have to‚ but don’t use 0 oC and 100 oC The graph must include: • An illustration (not fancy) of how the molecules are arranged in the solid phase‚ liquid phase‚ gas phase and during the phase changes. • How KE and PE change during different parts of the graph. •
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What was the 1850 Compromise and Why did it Fail? In 1850‚ Henry Clay one of the most influential political leaders in American history introduced a set of resolutions‚ which aimed to please both North and South America. The five proposals were rolled into a single ‘omnibus’ bill‚ which offered a solution to the growing sectional conflict over slavery and westward expansion‚ which arose from the 1846 Mexican War. The 1850 Compromise‚ which Senator Douglas stripped down and effectively helped
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What Kind of Thinker are you? Robin Dees HUM/111 March 3‚ 2013 Instructor: Joel Cooper Strategies of Critical Thinking Associate Level Material Stages of Critical Thinking Stages of Critical Thinking Complete the matrix by identifying the six stages of critical thinking‚ describing how to move from each stage to the next‚ and listing obstacles you may face as you move to the next stage of critical thinking. Stages of critical thinking | How to move to the next stage | Obstacles
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situation. One is to do so according to your own personal desires and beliefs. The other is to base the decision on the how others will view and respond to it. Remember that time in class when you thought you had the right answer but changed it because a majority of the class thought different‚ or that time you made fun of the nerdy kid in your class because it was considered the cool thing to do? Their might have been no problems at the time but when you found out your answer was the correct one and you
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The Phillips Curve and the Philippines According to Cristeta B. Bagsic‚ the Phillips Curve “depicts the trade-off between inflation and unemployment rate” (“The Phillips Curve and Inflation Forecasting: The Case of the Philippines”). Nowadays‚ the relationship depicted by the Phillips curve is specified in the following equation: πt = πe – γ(UR – UR*) + v where πt is the inflation rate‚ πe is the expected inflation‚ γ is a parameter‚ UR is the unemployment rate‚ UR* is the natural rate of unemployment
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EXPERIMENT 5 REDOX TITRATION: TITRATION USING SODIUM THIOSULPHATE Objectives 1. 2. To prepare a standard solution of potassium iodate for use to determine the concentration of sodium thiosulphate solution accurately. To acquire the proper techniques of carrying out a titration. Introduction Redox titrations using sodium thiosulphate as a reducing agent is known as iodometric titration since it is used specifically to titrate iodine. The reaction involved is: I2 + 2Na2S2O3 I2 + 2S2O322NaI + Na2S4O6
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describing a time when you had to test a theory. This theory may be something you have tested at work‚ school‚ or even at home. Answer the following questions in your summary: o What type of informal research method did you use? o How was your research method similar to research methods used by psychologists? o If given another opportunity‚ what would you have done differently? When thinking about a time I had to test a theory there are many that come to mind. One thing that comes to mind
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hollow shaft‚ spherical‚ drive shaft and pinion and cylinder‚ is repaired change regulation of the electrical components‚ electrical equipment repair‚ commissioning acceptance work must be conducted. However‚ do you know the inspection standard of ball mill? The inspection standard of ball mill is in the following: 1‚ two bearing base processing surface on the same horizontal plane‚ center distance tolerance of 1 mm‚ longitudinal centerline deviation 0.5 mm‚ not parallel axis deviation 0.5
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