LMounika Alluri Chemistry HL Block D 19/9/12 LAB REPORT #1 LIMITING REAGENTS INVESTIGATION Aim: To determine the limiting reagent and percent yield of the reaction between potassium iodide with lead (II) nitrate solution. Apparatus required: Safety glasses‚ funnel stands‚ watch glass‚ oven‚ electronic balance‚ wash bottle with distilled water‚ test tubes‚ 10.0mL 0.50M lead (II) nitrate‚ 10.0mL 0.30M of potassium iodide solution‚ two 100.0 mL beakers‚ funnel‚ filter paper. Reaction
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BPK 310 – Assignment 1 UNIT 1 Question 1 (5 marks): Discuss the rate-limiting factor. Why is it important to consider when studying exercise physiology and training? Provide one example to clarify your understanding. The rate-limiting factor is the “step” that limits performances (the “slow step”). If we know the rate-limiting step in a certain physiological pathway or training situation‚ we can manipulate the factors of this step to change and increase the rate of the pathway. This will improve
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During this lab‚ we found the excess reactant and limiting reactant between Aluminum and Copper (ll) Chloride. Using stoichiometry‚ we were able to make predictions. Through the reaction 2Al + 2CuCl₂ → 3Cu + 2AlCl₃ we carried out this experiment and determined that the limiting reactant was CuCl₂ and that the aluminum was in excess. We also determined the percentage yield of copper. Purpose: The purpose of this experiment was to determine the limiting reactant and percentage yield of the reaction that
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Nour Aboushaar Professor Elizabeth Palamara English Composition 101 14 September 2014 Limiting the Freedom of the press Advertising is a powerful and effective source of information in our everyday life just like TV or internet. Advertisers use ads to encourage people to get products and make products more applicable to them. Respectively‚ advertisers should allow the freedom of the press. Freedom of the press is freedom of communication and the right to publish newspapers‚ magazines‚ and other
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Limiting Science Rough Draft #2 David Baltimore’s written work of Limiting Science: A Biologist’s Perspective discusses the controversy of research in molecular biology and its limitless freedom‚ disputing there should be freedom in which direction science heads‚ but the public should decide the pace at which it goes. Baltimore first begins his argument with the discussion of how molecular biology began. It was born from individual sciences where attempts at trying to solve the mysteries in these
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from theoretical yield. Through simple molar calculations‚ using the coefficients in the balanced chemical equation( CaCl2(aq) + 2NaOH(aq) Ca(OH)2 + CaCl2)‚ the limiting reagent could be determined from the volumes of reactants used. The number two to four tests turned out as expected‚ NaOH and CaCl2 respectively being the limiting reagents. In the second test‚ according to our calculations‚ the products should have completely reacted‚ leaving pure water after filtration. In the test‚ the addition
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The principle of limiting reactants relates to this lab because the limiting reactant is the substance that is used up first in a chemical reaction. The amount of product was limited by that reagent. The excess reactants were considered to be the other reagents that were presented in excess of the quantity that was reacted with the limiting reagent. The theoretical yield was determined as the amount of product obtained when the limiting reagent was completely used. The limiting reagent was identified
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Limit The Use of Technology Over the past several years’ technology has advanced significantly. Nowadays most everything we use is done by some form of technology. Several years ago‚ we didn’t even have cellphones or the Internet‚ now we have cellphones that can access the Internet. This generation has become so dependent with technology that it is actually beginning to harm most us‚ not help us. So this leads us to believe one should limit his or her use of technology because it could cause addiction
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Factors Limiting Photosynthesis The rate of photosynthesis increases with increasing light intensity. But too much light intensity can slow down the rate of photosynthesis because the light damages chloroplasts in the leaf. The higher the temperature the greater the rate of photosynthesis as photosynthesis is a chemical reaction and chemical reactions increase with temperature. But at temperatures above 40 C the rate slows down because the enzymes involved are destroyed
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TOBY TANDRA ENG 101 ESSAY #1: FINAL DRAFT 10/04/2013 Limiting Freedom of Endless Opportunities In the past few days‚ I ’ve been reading an interesting essay by Jill McCorkle titled "Cuss Time". The main purpose of this essay is to convey the idea that nowadays‚ society desperately needs freedom of speech in which some people‚ especially children‚ they do not get because of its limitation rules. Moreover‚ another important point that McCorkle also discusses is our ideological belief’s tendencies
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