organic layer‚ and the product is recrystallized for TLC‚ GC/MS‚ and melting point analysis. Pre-Lab 1. What is the limiting reagent in step 1? What is the theoretical yield of amide 1 in figure 3? The amine is the limiting reagent. The theoretical yield is 4.81 grams of amide 1. 2. What is the theoretical yield of Lidocaine? Base calculations on 2‚6-dimethylaniline. The theoretical yield of lidocaine is 5.71 grams. 3. How many molar equivalents of diethyl amine are used in step 2 Roughly 3 molar equivalents
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silver nitrate. This single replacement reaction will produce a blue solution of copper II nitrate and solid silver. By weighing the reactants before the reaction‚ the mass of silver produced can be predicted. This theoretical yield can be compared to the actual yield of silver. Purpose Students will compare the theoretical mass of silver with the actual mass of silver from the single replacement reaction between copper and silver nitrate. Materials Copper wire stirring rod 18 x 150 mm
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minimum amount of cold water will cause the alum to crystallize. The amount of water incorporated in the alum structure should be clearly defined to derive the full formula of alum‚ which makes it possible for calculations of theoretical‚ actual and percent yield of alum. Experimental Methods The experiment was constructed based on the guidelines from Franklin and Marshall Lab Manual1. In a 400 mL-beaker‚ 0.5 g of aluminum and 2.01g of potassium hydroxide was prepared and mixed together. An amount
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Abstract Acetic Anhydride and p-Aminophenol were heated in a vial attached to an air condenser to synthesize crude acetaminophen‚ resulting in 0.097 grams (47.48% yield). The crude acetaminophen was then recrystallized in a solvent of water and methanol over heat resulting in 0.082 grams (39.61% yield) of pure acetaminophen. Melting points of both crude and pure acetaminophen were taken‚ and found to be 165.9 - 170.9°C and 168.2 - 171.5°C‚ respectively. The literature melting point of acetaminophen
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Preparation and SN1 Reactivity of 2-Bromobutane Whitney Bellido Department of Chemistry‚ Illinois State University‚ Normal‚ IL 61790-4160 Submitted: April 4th‚ 2013 Introduction The overall goal of this experiment is to understand and be familiar of SN1 reactivity. We also learned how to prepare 2-Bromobutane by learning how to distill and extract this product from its organic layer. Finally‚ another goal was to specifically understand the relative reactivity of alkyl halides under SN1 conditions
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contained in a 69.5-g sample of this gas? A) 0.49 mol B) 2.04 mol C) 103.6 mol D) 34.5 mol E) 4.08 mol 5. How many atoms of hydrogen are present in 5.9 g of water? A) 2.0e23 B) 1.8e24 C) 7.1e24 D) 3.9e23 E) 0.65 6. The limiting reactant in a reaction A) is the reactant for which there is the least amount in grams. B) is the reactant which has the lowest coefficient in a balanced equation. C) is the reactant for which there is the most amount in grams. D) is the
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followed by cooled sodium nitrate and hydrochloric acid to form the diazonium salt used in the reaction. The products were washed in ethanol. The product was obtained at an 84% yield and was characterized by its physical attributes. Results and Discussion: An adequate percent yield of 84% was obtained. These good yields are attributed to a efficient procedure. The 16% that was lost during the reaction can be attributed to experimental error as well as the possibility for side reaction. If the
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complete) 1 2 3 4 5 Abstract 1 2 3 4 5 Introduction 1 2 3 4 5 Reaction Scheme and Curly arrow mechanism 2 4 6 8 10 Table 1 2 3 4 5 Experimental Procedure 1 2 3 4 5 Calculation (percentage yield and composition of isolated materials) 1 2 3 4 5 Results and Discussion (include GC) 1 2 3 4 5 Completion/participation of the Experiment 1 2 3 4 5 Total Comments /50
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Chemistry 1: PROBLEM SET SY 2012/2013 CLASS #: _______________ NAME_________________________________________ SECTION: ______________________ Stoichiometry II - Mole Calculations/ Limiting and Excess Reagent – Lecture Notes 1. Given the balanced equation N2(g) + 3H2(g) 2NH3(g) How many moles of ammonia are produced when 0.60 mol of nitrogen reacts with hydrogen? 2. Given the equation: SiO2 + HF SiF4 + H2O a. Calculate the number of moles HF that would completely react with 2.5 moles of
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Introduction: Cyclohexanol is mainly used in the production of caprolactam and adipic acid that is a raw material of nylon 6 (Zhang‚ et al‚ 2002). Cyclohexanol can be produce through several methods‚ which include the oxidation of cyclohexane‚ the hydration of cyclohexene‚ or the hydrogenation of phenol (Zhang‚ et al‚ 2002). Problem with oxidation of cyclohexene is poor selectivity‚ extremely large recycles and explosion hazards. (Suresh‚ Sridhar‚ Potter‚ 1988). The purpose of this experiment was
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