Calculating Yields ( LO1‚ CFA1) In the previous problem‚ what is the capital gains yield? The dividend yield? What is the total rate of return on the investment? 3. Calculating Returns ( LO1‚ CFA1) Rework Problems 1 and 2 assuming that you buy 750 shares of the stock and the ending share price is $ 32. 5. Calculating Average Returns ( LO1‚ CFA1) The rate of return on Cherry Jalopies‚ Inc.‚ stock over the last fi ve years was 17 percent‚ 11 percent‚ 2 percent‚ 3 percent‚ and 14 percent. Over the
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the most important. Include observations such as appearance of the reaction‚ color of product‚ etc. If the experiment was a preparative one‚ you should also report your percent yield: Percent Yield = Actual or experimental yield in grams (or moles) X 100 Theoretical or calculated yield in grams (or moles) Show all of your calculations! Graphs should be done on graph paper. Note: Our lab manual contains a "Data Report Sheet" for each experiment
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Nitration of Naphthalene Wed 2/25/2015 Lab report # 1 Abstract: The purpose of this experiment was to nitrate naphthalene with nitronium ion‚ which is formed at low concentration from a reaction of nitric acid and sulfuric acid. The percent yield from the experiment was 54.4% of the product‚ and the melting point of the possible results were 59 °C for 1-nitronaphthalene‚ and 78°C for 2-nitronaphthalene. Introduction: Polynuclear aromatic hydrocarbons such as naphthalene can be nitrated
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consumed. • Excess Reactant – will not be totally consumed; will have left over. • The maximum amount of product (theoretical yield) that can be obtained in a chemical reaction is based on the limiting reactant. – Need to fully “GRASP” Example 3 • Consider the reaction: 2Sb (s) + 3I2 (s) → 2SbI3 (s) Determine the limiting reactant and the theoretical yield (in grams) when 1.20 g of Sb and 2.40 g I2 are mixed. What mass of excess reactant is left when the reaction is complete?
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Honors Chemistry Name: _____________________ Study Guide – Unit 8: Stoichiometry Vocabulary – Give definitions and examples where applicable 1. Product 2. Reactant / Reagent 3. Theoretical Yield 4. Actual Yield 5. Percent Yield 6. Excess Reagent 7. Limiting Reagent 8. Law of Conservation of Matter Short Answer – explain the following: 9. What is conserved in every balanced equation (multiple answers)? 10. What determines the mole ratio in a balanced equation? 11. What is the proper method
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Date File 1 Chapter One 1) Determine whether the evaluated group is a population or a sample. a) Based on a randomly selected group of 500 patients with high cholesterol‚ it was found that 67% have heart disease. Is this a population or a sample; explain your answer. Population‚ because it is the study of a number of people for a particular study. b) An investigation of 150 randomly selected local restaurants concluded that 42% of local restaurants have serious health code violations. Is
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| Lab #3: Initial Velocity of a Projectile | | | Abhishek Samdaria | Pd.4 and 5 | | Lab #3: Initial Velocity of a Projectile Theory: How can we determine the initial velocity of a projectile? Experimental Design: The purpose behind this experiment was to determine the initial velocity of a projectile. Projection motion consists of kinematics of motion in the x and y directions. With two dimension kinematics‚ there are the x and y components in any given velocity. In projectile
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obtained crystals that were a small and more powdery than plate-like. Even though our crystals did not turn out as we had hoped‚ the melting point range for our crystals was very close to the literature value. The calculations for the percent yield are as follows: First‚ the moles of the reactants must be calculated: Through these calculations we can see that the cyclopentadiene is the limiting reagent is the cyclopentadiene because the reaction between cyclopentadiene and maleic anhydride
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Prepare a table. 3. Calculate the number of grams of Na2CO3 to weigh out from the number of moles in step 2. Prepare a table. 4. Calculate the number of grams of CaCO3 that are expected to be produced. This is your theoretical yield. Have Factor (molecular mass) Factor (mole ratio)
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Introduction Friedel-Crafts acylation of anisole with acetic anhydride was used in this experiement to synthesize 4-methoxyacetophenone with the use of a reflux apparatus. Friedel-Crafts reactions can be done by alkylation‚ which involves mixing an alkyl or acyl halide with a Lewis acid‚ or acylation‚ which is done with acid chlorides or anhydrides(Lefevre). Acylation was used because it does not have as many disadvantages aklyations reactions have such as polyalkylation‚ second electrophilic attacks
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