Introduction The purpose of this experiment was to determine the rate law graphically from the rate of disappearance and the x y values also the specific rate constant (k). Activation energy was also determined‚ and the effect of catalyst was evaluated in the reaction between peroxodisulphate ion S2O82-‚ and iodide ion‚ I-. S2O82-(aq) + 3 I-(aq) --> 2 SO42-(aq) + I3(aq) The general expression for the rate law‚ given this overall reaction‚ is: rate of disappearance of S2O82- = k[S2O82-]m[I-]n Chemical
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≪Propose a reaction mechanism using the criteria presented in the lesson‚ with the third step as the rate-determining step. Hypothetical reaction: A + 2B + 4C ---> 2D + E The rate law has been determined to be [B]^1[C]^2≫ I had prepared the material below before I received your criteria. As you know‚ each step in a reaction mechanism is an elementary step. Each step is characterized by its molecularity. A step could be unimolecular‚ as in A → B or A → B + C It could be bimolecular as in 2A → B +
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Exchange Rate Notes Class Notes Exchange rate can be expressed in two ways‚ for example: £1 = 1.52 CHF 1 CHF = £0.66 Foreign Exchange (Forex) Market Many currencies float freely on the free market. However‚ this is a relatively new phenomenon. After the war‚ major currencies were pegged to each other under the Bretton woods agreement. They were backed up by gold reserves to keep them at this level. Prior to the war they were often pegged to the price of Gold. Prior to the Euro (1990s)
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$42 per share. Assume the expected rate of return on Federated’s stock is 18 percent. • Taxes: Federated’s marginal tax rate is Tc = .35 What are the key assumptions underlying your calculation? For what type of project would Federated’s weighted-average cost of capital be the right discount rate? 2. Suppose Federated Junkyards decides to move to a more conservative debt policy. A year later its debt ratio is down to 15 percent (D/V =.15 ). The interest rate has dropped to 8.6 percent. Recalculate
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Bonus assignment 1. For April 30‚ 2013 Federal funds rate – 0.13 Federal Reserve discount rate – (Discount window primary credit) - 0.75 For December 23‚ 2005 Federal Reserve– 4.23 Discount rate – 5.35 As we can see from the information above‚ the short-term rates have decreased since the end of 2005 (4.230.13; 5.35 0.75) 2. The schedule of minutes can be found on http://www.federalreserve.gov/monetarypolicy/fomccalendars.htm and the press releases can be found on the News&Events
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The article that I have picked to write about is “ Couples and the Male Birth Control Pill: A Future Alternative in Contraceptive Selection‚” from the publication of The Journal of Sex Research. Written by William Marsiglio and Elizabeth G. Menaghan. First‚ the article focuses on male oral contraceptives‚ as to where the studied is conducted based on married couples selected from a newspaper. Secondly‚ the survey was put into two categories husbands that believed the woman was responsible for
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Formative Assignment Including PSAfor class IX PHYSICS 1. Motion is relative or absolute? Give reason. 2. Name the physical quantity that essentially changes as a body moves. 3. Is displacement or distance independent of path? How? 4. Give example of a motion in which distance is covered but there is no displacement. 5. Give one example of motion where‚ distance and displacement are same. 6. When moving car returns to the same point what will be the ratio of
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Bruce Woods HIST 1152 Adam Maxwell Primary Source Review #1 09/10/2014 Margaret Sanger Need for Birth Control Margaret Sanger was born on September 14‚ 1879‚ in Corning‚ New York. And started a publication promoting a woman ’s right to birth control but due to Obscenity laws forced her to flee the country until 1915. In 1916 she opened the first birth control clinic in the U.S. Sanger fought for women ’s rights her entire life. Born Margaret Higgins on September 14‚ 1879‚ in Corning
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The silent film I chose to watch “The Birth of a Nation” is a 1915 American drama‚ directed by D.W Griffith‚ produced by D.W. Griffith and Harry Aitken‚ co-written by D.W Griffith‚ T.F. Dixon J.R. and Frank E. Woods‚ and was based on the novel and play “The Clansman” both by T.F. Dixon J.R. It was originally released on February 8‚ 1915 and was presented in two parts‚ separated by an intermission‚ as it is over three hours long. The film follows the lives of two families in Civil War era America
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Changing the Rate of Reaction PART 1: PARTICLE SIZE Question: How does changing the particle size of marble (CaCO3) affect the rate of reaction when it is added to hydrochloric acid (HCl)? Hypothesis: If I change the particle size of marble to test how to change the rate of a chemical reaction‚ than the chemical reaction with the smallest marble particles will produce CO2 the quickest because the larger the surface area‚ the more place the hydrochloric acid will have to collide with the marble
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