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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Flat Taxation is Equal Taxation Tax rates in America have been changed and reformed to try and meet the needs of the current economy‚ or to make a politicians look good. Recent questions have been asked about whether we should reform the entire style of tax rates in America. Future generations are going to feel the burden or benefit from tax choices we make now because it takes time for things of this magnitude to take place. Also it is a possibility that the future generation may need new tax
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“Pulsation Rate of Blackworms” Antonio Cavazos Biology 1107- 102 (Tuesday 1:00 – 3:50) 04/ 07/ 2009 Jose Fierro Addison Rhudy I. Introduction For any animal that is too large and/or too complex a circulatory system is needed to obtain essential chemicals by the process of diffusion alone. A circulatory system transports nutrients‚ oxygen and other important chemicals to all body cells. This system have three components: circulating fluid‚ a heart or pulsating vessel in charge
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ERYTHROCYTE SEDIMENTATION RATE | -AND ITS VARIATION | | ABSTRACT: The Erythrocyte Sedimentation Rate (ESR)‚ also branded as sedimentation rate or Biernacki Reaction‚ is the rate at which red blood cells sediment in a time of 1 hour. To execute the test‚ anti-coagulated blood is positioned in an erect tube‚ known as a Westergren tube‚ and the rate at which the red blood cells fall is calculated and accounted in millimeters per hour (mm/h)
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Homeostasis of BP and Heart Rate A normal blood pressure can be identified by having a systolic pressure of around 120 and a diastolic pressure of around 80. This value is expressed as "120/80". A normal heart rate is expressed as the amount of times it beats in a minute; a normal adult heart rate is between 60-100 beats per minute (BPM). There is a relation between these two measurements‚ but they are stimulated by several different circumstances. The blood pressure is mainly affected
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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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Western cities‚ Hong Kong’s MTR enjoys a very low crime rate. With a reference to environmental criminology‚ explain why this is the case. Hong Kong MTR is one of the busiest underground transit systems in the world with around 4 million person-time passenger per day. (MTR‚ 2010a) In 2007‚ Hong Kong MTR annual ridership was the seventh highest in the world. (MTA‚ 2010) Meanwhile‚ this is our proud that Hong Kong MTR has a low crime rate‚ it helps to maintain MTR to be one of the famous underground
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Interest Rate Risk (IRR) Management What is Interest Rate Risk : Interest rate risk is the risk where changes in market interest rates might adversely affect a bank’s financial condition. The management of Interest Rate Risk should be one of the critical components of market risk management in banks. The regulatory restrictions in the past had greatly reduced many of the risks in the banking system. Deregulation of interest rates has‚ however‚ exposed them to the adverse impacts of interest rate risk
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Exchange Rate The rate at which the currency unit of one country may be exchanged for that of another. Exchange rate plays a critical role in country’s level of trade. An exchange rate has two components‚ the domestic currency and a foreign currency‚ and can be quoted either directly or indirectly. In direct quotation‚ the price of a unit of foreign currency is expressed in terms of the domestic currency. Eg: 1 US Dollar = 60.21 INRIn an indirect quotation‚ the price of a unit of domestic currency
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The Rate of a Reaction The area of chemistry that deals with the rate or speed of chemical reactions is known a chemical kinetics. The word “kinetic” is derived from the Greek name kinitikos that means movement or motion. In the present context‚ the kinetic means the reaction rate or rate of a reaction that is defined as the change in concentration of a reactant or a product with time (M/s). Chemical reaction can be represented by the following general equation. Reactants Products It is very important
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