Chapter 5: Solutions‚ Colloids‚ and Membranes Chapter Summary Mixtures and Solutions * A mixture maintains its identity regardless of the proportions of its components. * A mixture can be separated into its pure components through physical separation techniques. * The components are distributed uniformly throughout a homogenous mixture. * The components are not distributed uniformly throughout a heterogeneous mixture. * A solution is composed of a solvent and one or more solutes
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Discussion: In this experiment a ketone‚ 9-fluorenone is reduced to and alcohol. The are two possible ways by which this reduction can occur. One is by a catalytic hydrogenation‚ this uses a catalyst such as palladium or nickel‚ hydrogen gas‚ and heat/pressure. This can reduced an alkane to alkene. This catalytic process is preferred in industrial practices because the cost is low in the long run and more importantly there is little to no waste expense. However‚ hydrogen gas is dangerous due to
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tails that binds together which leaves the polar heads opening to the outside making the lipids insoluble in water. Lipids normally have different properties and environments which they prefer like saponifiable lipids which can be generalized as ester containing compounds that can be hydrolyzed by using a base as a medium then gives off soap(fatty
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BACKGROUND: Esterification is a reaction that combines an alcohol with an organic acid‚ with a water molecule is being taken out‚ and an ester is formed. A concentrated acid catalyst speeds up the esterification. In this experiment set up‚ sulphamic acid was used‚ as it is a solid acid and be added dry‚ without any water‚ which is a reactant in this experiment equilibrium. Esterification is a slow and reversible reaction. The equation for the reaction between an acid RCOOH and an alcohol RẬᶦ
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Sarah Muhs ID: 11325862 Nitration of Methyl Benzoate Post Lab: 1. Is the ester group of your starting material electron donating or withdrawing? Support your conclusion with resonance drawings. The ester group‚ CO2CH3‚ of the starting material was electron withdrawing. 2. Draw the mechanism of the nitronium ion reaction with the methylbenzoate. 3. Why does water stop the reaction? Water stops the reaction because of Le Châtlier’s principle. Since water is a product‚ when more is added it drives
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Rectangular Microstrip 6X6 Patch Array Antenna Performance Evaluation based on Permittivity of the Substrate Materials 1 P.Sreyash‚ 1A.Snehitha‚ 1V.Satya Sainadh‚ 1P.L.Madhuri‚ 1Saroj Gautam‚ 2 Mr.B.T.P.Madhav‚ 2Mr.Pranob Kumar Charles‚ 3Dr.Habibullah Khan Department of ECE‚ K L University‚ AP‚ India. : sreyash306@yahoo.com‚ Snehitharao@yahoo.com 1 Project Students‚ 2Asst. Professor‚ 3Assoc. Professor‚ 4Head of the Department Abstract: In the recent years‚ the development in communication systems
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Dissolution[edit] In the most common situation‚ a tablet is ingested and passes through the esophagus to the stomach. The rate of dissolution is a key target for controlling the duration of a drug’s effect‚ and as such‚ several dosage forms that contain the same active ingredient may be available‚ differing only in the rate of dissolution. If a drug is supplied in a form that is not readily dissolved‚ the drug may be released more gradually over time with a longer duration of action. Having a
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Just how large is the secular nature of Esther and how much does it reflect our lives today? The Jews in Megillat Esther are non-religious yet manage to prevail‚ which makes the book both distinctly unique for the bible and allows it to become one of the most applicable to life as a Conservative Jew in America today. One of the most interesting aspects of Megillat Esther is the completely secular nature of its characters. This can be seen immediately as the entire first chapter of the book
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polymers and inks Utilizing raw materials including propane‚ ethane‚ butane‚ high sulfur coal‚ natural gas‚ wood pulp and acetone‚ Eastman produces several products in this category. Products include cellulosic polymers‚ cellulose esters‚ adhesion promoters‚ Texanol ester alcohol‚ solvents‚ hydrocarbon resins‚ rosin resins‚ resin dispersions‚ and polymer raw materials. These products are used for a variety of purposes ranging from packaging to automotive paints to disposable diapers. Fibers Manufactured
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activities. Now‚ it’s time to go back to his footsteps in Mindanao to find out how the Flores family came to be. As Solomon was staying in Bukidnon after the war broke out in 1942‚ the locals in the pineapple plantation became friendly to him. Soon he met Ester Ubalde‚ daughter of plantation farmers‚ and soon became his laundress. At that time‚ household chores were not usually done by
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