off of the measuring devices. For this experiment‚ we followed the procedures as indicated in the lab manual. Data Copper Rod Measurements Trial 1 2 3 4 Length (m) 0.601 0.6 0.601 0.6 Diameter (caliper-m) 0.0006 0.00065 0.0006
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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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Mesta Dr. Mbah December 6‚ 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
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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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Fifteen-year-old Amari loves life in her home village in Africa. She spends her days strolling along the stream‚ daydreaming about her handsome future husband‚ teasing her little brother‚ and avoiding chores. But everything changes the day the pale-faced visitors arrive. Everyone contributes for the celebration to welcome the strangers. Amari helps her mother arrange the food‚ her storyteller father shares his tales‚ her fiancé plays his drum‚ and everyone dances. But then their world shatters
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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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Chilean Copper Mine Name XBCOM/275 May 18‚2014 Dr Jose A. Cotay Chilean Copper Mine On August 5‚ 2010 there was one of the worst mining disasters in the history of mining. In the Atacama Deseret one of the largest mines there was a clasp. On this day 33 miners were unaccounted for after they did a head count of all the miners that come out the dust and dirt. The company was not sure if they were alive or dead. The community that these men lived in was grief stricken and their families were
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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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Pennies don’t put in their two cents for their place as a part of American currency. It’s not like they’re particularly useful. Almost nobody picks them up unless it’s in the hope that the face of the long-deceased Abraham Lincoln might bring them good fortune of some odd sort. Thieves don’t scrounge around people’s pockets for pennies‚ and then have the person call the police for their missing penny. When most people say that they want to keep the penny‚ most of the time it will simply be an infantile
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Pennies were the first coin minted in the U.S ‚the first U.S penny is 223 years old. In recent years‚ there has been a heated debate about money in the United States. Surprisingly‚ it is about the pros and cons of producing and using pennies. In my opinion the penny should no longer be used and produced in America today. Here are some reasons why‚ pennies cost more than it’s worth‚ they are not big money‚ and are so close to worthless. ‘‘ Michael Cooper‚ an eighth grader
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