1. Use only 1 or 2 sentences only to answer in terms of economic concepts. [10 points] a. What are automatic stabilizers? Automatic stabilizers are part of the fiscal policy and are built into the federal/state/local tax and transfer systems. They are put in place to stimulate aggregate demand in a recession without the need for action by policymakers. Corporate and personal income taxes are the best-known automatic stabilizers. For example: when the economy is in its growth stage‚ our progressive
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May 3‚ 2011 British Literature II Defining Literary Techniques of 20th Century English Literature During the 20th Century‚ much advancement and change occurred throughout English Literature. All of the works we studied from this period were heavily influenced by current events in the world. The writers all examined the world around them and tried to express it through their writings. The three things that weave a common thread throughout all 20th Century English Literature are global warfare
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university (CU) in China is a recent phenomenon although it existed more than eight decades in the western world. Literature reviews indicate that CU is an independent professional-managed entity proactively providing learning intervention in the workplace. With the ownership of the corporation‚ CU embedded culture and optimized learning through commitment to strategic intent in order to meet organizational objectives. The concept of “training” has to be redefined. The major key role of CU is to facilitate
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TO QUESTIONS: 1. a. in distilled water: Cu(OH)2(s) (( Cu2+(aq) + 2OH-(aq) Ksp Cu(OH)2 Keq = Ksp Cu(OH)2 = 2.2 x 10-20 b. + 6.0M H2C2O4 Cu(OH)2(s) (( Cu2+(aq) + 2OH-(aq) Ksp Cu(OH)2 H2C2O4 (( H+ + HC2O4- Ka1 H2C2O4 HC2O4- (( H+ + C2O42- Ka2 H2C2O4 Cu2+ + C2O42- (( CuC2O4 1/Ksp CuC2O4 2(OH- + H+ (( H2O) 1/K2w Net Keq = (Ksp Cu(OH)2 x Ka1 x Ka2 )/Ksp CuC2O4 = 1
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A Sequence of Chemical Reactions: Transforming Copper Briefly describe. a) Why must you carry out the oxidation of Cu with HNO3 in a fume hood? Concentrated nitric acid is a toxic oxidant. Avoiding skin contact or inhalation is highly important. The reaction between Cu and HNO3 produces NO2‚ a toxic brown gas; therefore working under the fume is necessary in order to prevent inhaling the toxic gas. b) Why you should be particularly careful when you work with 3 M H2SO4 solution? Sulfuric acid
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electrochemical half-cells through pairing it with Cu2+(0.1 M)|Cu half-cell and then comparing it with the theoretical value. Galvanic or voltaic cells contain the anodic and cathodic cell reactions‚ and in order to get the value of Ecell‚ we add both half-reactions. The more positive the Ecell‚the more negative ΔG would be‚ thus‚ giving us a spontaneous reaction. After comparing the cell potentials‚ formation constant of [Cu(NH3)4]2+ and the Ksp of Cu(OH)2‚ we’ve seen that their deviation where great‚
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quantity is $331.44. b. Q= µ+Φ-1(Cu/(Cu+C0))δ Q=500+ Φ-1(.8/(.2+.8))100 Q=500+(..7881)(100) Q=579 This is off by 5 newspapers from the model given in the spreadsheet‚ which results in a $.03 difference in profits Se ingresa el resultado de la pregunta 1. El cual se resuelve con el siguiente enunciado. a. Sheen should stock the optimal stocking quantity in this situation‚ which is 584 newspapers. The expected profit at this stocking quantity is $331.44. b. Q= µ+Φ-1(Cu/(Cu+C0))δ Q=500+ Φ-1(.8/(.2+.8))100
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The Spectrophotometric Analysis of Copper in a Copper Oxide Ore Abstract In this experiment‚ the mass percent of copper in an unknown copper oxide ore was determined by using a spectrophotometer and Beer’s Law. The mass percent of copper was found to be 5.12 0.14%. Introduction In spectrophotometric analysis‚ the concentration of a solute is measured in a solution by measuring the amount of light that is absorbed by the solution in a cuvette placed in a spectrophotometer. A spectrophotometer
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activity of the metal pairs used with Cu to make a voltaic cell‚ on the voltage of the cell when room temperature‚ 18.0 ℃‚ room pressure‚ 1068 hPa‚ molarity and volume of electrolytes used‚ 1M – 50 mL‚ surface area of electrodes‚ 6cm x 3cm and type of salt bridge‚ KOH‚ is kept constant in each trial? Aim: The aim of this investigation is to determine the effect of activity of metal pairs by changing the electrodes used on a half cell and keeping the other constant‚ Cu‚ under same
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Electrochemical Cells Tutorial sheet 1. Calculate the single electrode potential for copper metal in contact with 0.10M Cu+2 solution. E˚ for copper electrode is 0.34V. 2. Calculate EMF of the cell involving the reaction : Mg(s)+ 2Ag+(aq) → Mg+2(aq) + 2Ag(s) Given; [Mg+2] = 0.130M and [Ag+] = 1.0x10-4M & E˚Ag+/Ag = 0.80V and E˚Mg+2/Mg = -2.37V.
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