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    Percent Yield Lab

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    I. Introduction The Percent Yield lab is designed to further the students’ understanding of percent yield by having them predict how much material will be produced from a reaction; specifically a double replacement reaction. In order to perform the lab‚ a solid understanding of percent yield is necessary. According to Prentice Hall Chemistry book‚ percent yield is comprised of two main components. The first is the theoretical yield. The theoretical yield is what is calculated and predicted. It is

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    4.08 Percent Yield

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    17 g     Determine the percent yield of NaCl in your experiment‚ showing all work neatly in the space  below. (5 points)    7.17 g / 8.8197 g = 0.81295 = 81%    If you had not heated the product long enough to remove all of the water‚ explain in detail how  that would have specifically affected your calculated actual yield and percent yield. (5 points)    The product’s mass would be greater making the calculations adjust. If my actual yield is  greater‚ then so would my percent yield.

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    factors. Many believe that it is hard work that bring them success‚ others think that luck is more important. I totally agree with the quotation‚ because I believe that success comes from hard work‚ as Newton said “Genius is one percent inspiration and ninety nine percent perspiration”. People often believe that luck is something that is beyond our control. How can we know when we get a big contract? How can we predict when our experiment give way for a new discovery? I disagree with this kind

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    Purpose The purpose of the experiment is to determine the percent yield of the precipitate; by performing double displacement reaction between solutions of two different compounds. Introduction First of all when making a solution of two different compounds; there will many variables that can be considered during the experiment. However‚ the variables are controlled variables. Controlled Variables ∙amount of water that will be dissolved with the compound (amount of water until the compound is

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    Percent Yield Lab

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    2012 Percent Yield of a Chemical Reaction Introduction Yield is the quantity of product in a chemical reaction‚ the theoretical yield of a reaction can be calculated using mole ratios from the balanced chemical reaction. The actual yield has to be obtained and measured in a laboratory. It may be usual to often find the actual yield to be less than the theoretical yield due to many different factors. This gives rise to the concept of percent yield. Sodium bicarbonate and hydrochloric acid was used

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    1.08 Percent Yield

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    The percent yield was calculated to be 171% indicating a source of error. The high percent yield was due to the product being wet since we did not have enough time to dry the product with the vacuum filter—since we had to evacuate the building due to the fire alarm. If we were able to vacuum filter our product more‚ the percent yield would be close to 100%. 1. Assign the peaks in your NMR spectrum of your salicylic acid. See NMR spectrum on back 2. Assign the peaks in the IR spectrum of your salicylic

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    The percent yield of meso-1‚2-dibromo-1‚2-diphenylethane was calculated to be 66.36% and with a melting point of 235.1°C. Therefore‚ it can be concluded that this experiment was successfully conducted as the percent yield obtained is only 33.64% off from the equilibrium point‚ and because the melting point met the literature value. The percent yield for the product was less than 100%‚ indicating that were experimental errors‚ such as an undesirable side reaction‚ or more likely‚ an incomplete reaction

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    Ten Percent Summary

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    Ten Percent Summary – Chapter 9 Lessons 1-4 The French Revolution & Napoleon In World History & Geography‚ Chapter 9 the French Revolution Begins‚ Radical Revolution & Reaction‚ The Rise of Napoleon and The Napoleonic Wars & The Fall of Napoleon and The European Reaction‚ McGraw – Hill Networks explains The French Revolution & Napoleon. Causes of the French Revolution were often seen as a major turning point in European history. The long – range causes of the French revolution are to be found in

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    4.4ai. The price elasticity of demand is given to calculate the new price. The fruit stall has 100 peaches initially but 10 peaches are rotten. It means the number of remaining peaches is 90 units. Therefore‚ the question provides the factors such as initial quantity‚ new quantity‚ initial price which are 100‚ 90‚ 1 respectively. Let the new price be x. Therefore‚ we will choose $1.2 per unit as the new price to sell the remaining peaches. 4.4aii. Case 1: If I do not discover the

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    wonder if this will be adequate to fund your retirement in 40 years. You can conservatively invest the money and earn 4.0% (compounded annually) during this period. How much will your game show winnings be worth upon your retirement date? (Ch5) a. $345‚346 b. $268‚943 c. $223‚990 d. $384‚082 e. $521‚016 6. You are considering the purchase of a new car with a price of $48‚200. You can make a down payment of $10‚000 and finance the remaining balance over 5 years (60 months) at 6.0%. You wonder if you can

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