Percent Error occurs due to many factors. In this lab by the graph I can state that there was a 100% error in all three unknown substances‚ Pure Leaf Lemon Tea‚ Sprite‚ and Tree Ripe Lemonade. This could be a result of not having properly zeroed the scale or the scale glitching when it came to zeroing it‚ which would have added extra mass and skewed the results. Another factor that could have resulted in a high percent error would have been the scale itself glitching which would have caused the wrong
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Fin 3320 Practice Questions1 – Total Course 1. Your wealthy uncle has set up a special account that will give you $500‚000 on your 35th birthday. Assuming you are age 21 (thus 14 years from receiving this)‚ what is the present value of this gift if the appropriate discount rate is 8.0%? (Ch5) a. $170‚231 b. $282‚449 c. $442‚619 d. $191‚206 e. $734‚664 2. You need $10‚900 for the down payment on a new car. You presently have $5‚000 in savings for which you expect to earn 6% (annual rate‚ compounded
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we can then calculate the water evolved. The first method we use to determine the percent composition is Gravimetric. With this method we use the mass of the reactant and the mass of the product. Another way to acquire the percent composition is by the Volumetric Method. This method requires measuring the water displaced by the O2 gas. If the experiment is done correctly‚ we should be able to calculate the percent composition of KClO3 by using both methods. Theory: This experiment requires us
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217 Dr.Rudolf Rednose Tues/8am/S-473 Determining the Percent Oxygen in the Air INTRODUCTION: Recent tragedies in coal mines have exemplified the importance for us humans to breathe an adequate amount of oxygen if we are to survive. But what amount of oxygen is adequate? How can we know the amount of oxygen present in what we consider fresh air? The purpose of this experiment was to determine the percent oxygen typically present in air. The conclusion of the test suggested that the concentration
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The first flask was placed under a buret. Finally we titrated the KHP by adding the base until the end point was reached‚ which was when it turned pink completely. We repeated this twice and then cleaned up. The procedure does not include very difficult math‚ however the calculations did. The harder math calculations included finding moles of the acid‚ moles of the base that was used to neutralize‚ and the molarity of the base. After all calculations‚ below is what we concluded. The molarity you had
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0 out of 5 points The main drawback to utilitarian reasoning is that: Answer Selected Answer: The majority may override the rights of those in the minority. Correct Answer: It is difficulty to accurately measure both costs and benefits. Question 2 5 out of 5 points Business executives are finding that a trusting‚ ethical relationship with a business partner is: Answer Selected Answer: Often essential in conducting business. Correct Answer: Often essential
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ratio for solids and liquids is expressed in g/mL or g/cm. Matter expands and contracts according to temperature. For liquids and solids‚ the change in volume is very small‚ but for gases‚ a temperature results in a proportional change in the volume. Therefore‚ gas density is dependent upon temperature; for liquids and solids‚ the small effect on volume is often ignored. PROCEDURE: A. Density of Water 1. Find the mass of a 50 mL graduated cylinder. Take the mass out to the nearest
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Lehmkuhl GmbH: 1-2 page analysis on how would you react to the changes in the fastener / attaching industry. What corrective steps should ML take to face the Japanese competitor? Changes in the Fastener/Attaching Industry: 1. Japanese entrant in the European market M/s Hiroto Industries‚ sold fasteners at price 20% less than that of Muller Lehmkuhl‚ with same quality products. 2. ML offered fasteners which were compatible to assemble only with their attaching machines‚ but Hiroto Industries
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Acid –Base Titration: A volume of 128 mL of 0.650 M Ba(OH)2 was required to completely neutralize 50.0 mL of nitric acid solution (HNO3). What is the concentration of the acid solution? Gravimetric Titration: Calculate the molar concentration of Ba2+ ions in a 500.0 mL sample of an unknown aqueous solution if 2.47 g BaSO4 is formed upon the addition of excess Na2SO4? Stoichiometry of Acid –Base Reactions: What volume of 0.800 M HCl is required to completely neutralize 35.0 g of Ca(OH)2
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Merlyn Larrondo Period 5 ENC 1101 10/13/14Alan Turning Knowledge for the World Math genius‚ World War II hero and Father of Artificial Intelligence‚ get’s arrested in Manchester England‚ 1954. Alan reports to police in England that it appeared to him that things in his home such as shirts‚ pants‚ and sweaters were missing but nothing big of value. As the police arrive to Alan’s apartment‚ detectives interview him and put his ideas together as they realize that the thief behind this robbery
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