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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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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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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experiment is to convert carbonyl compounds to alkenes using Wittig reaction. In this case we will be synthesizing Trans-9-(2-phenylethenyl) anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde. We will also aim to obtaining a high percent yield and purity for the synthesis of Trans-9-(2-phenylethenyl) anthracene. The mechanism for this reaction goes thus: Experimental: Benzyltriphenylphosphonium chloride (0.201g) and 9-anthraldehyde (0.116g) were weighed
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the design and construction of the end product. This test is usually done prior to any decision being made on the materials use. The theory behind tensile testing is to measure the stress-strain response of the material. By doing so you obtain the yield strength and ultimate tensile strength as some of the results and also provides information on how brittle/ductile the material is‚ which is vital in the future usage of the material in testing. In this test the aim was to perform tensile tests on
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Fixed Income Zero coupon bonds Professor Anh Le 1 – Zero coupon bond and zero yields A zero coupon bond (or zero for short)‚ as its name suggests‚ is a bond that pays no coupons. It only pays the face value on the maturity date. Not surprisingly‚ sellers of zero coupon bonds have to offer them at a deep discount in order to sell them to the public. For example‚ a 30‐yr zero‚ face value $1‚000 could be selling for as little as $53.54. One question you may ask right now is: i
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