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6) Define the frequency factor. 7) Explain what the exponential factor in the Arrhenius equation represents. 8) Is the activation energy for a forward reaction the same as the activation energy for the reverse of the same reaction? Use a sketch of a reaction energy diagram. 9) What is a catalyst and what.
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Short Answer Questions 1) Explain dynamic equilibrium. Use the generic reaction A(g) ? B(g) to explain. 2) Why is a thermodynamic equilibrium constant unitless? 3) Why aren't solids or liquids included in an equilibrium expression? 4) Can the Kp and Kc for a reaction ever have the same value? Why or why not? 5) How.
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71) Consider the following reaction: CO2(g) + C(graphite) ? 2CO(g) A reaction mixture initially contains 0.56 bar CO2 and 0.32 bar CO. Determine the equilibrium pressure of CO if Kp for the reaction at this temperature is 2.25 bar. A) 0.83 bar B) 0.31 bar C) 0.26 bar D) 0.58 bar E) 0.42 bar 72) Consider the following.
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  Multiple Choice Questions 1) Given the following balanced equation, determine the rate of reaction with respect to [SO2]. 2SO2(g) + O2(g) → 2SO3(g) A) Rate = - B) Rate = + C) Rate = - D) Rate = + E) It is not possible to determine the answer without more information. 2).
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Short Answer Questions 1) Explain why water does not dissolve in gasoline. 2) Why isn't pentanol (CH3CH2CH2CH2CH2OH) very soluble in water? 3) What happens to a supersaturated solution of potassium acetate once it is cooled and a small crystal of solid potassium acetate is added? 4) Give the preparation of rock candy. 5) How does.
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Matching Questions Match the following. A) largest van't Hoff factor B) solution that is most strongly dependent upon pressure C) solution of ionic compound with highest freezing point. D) highest boiling point E) solution with ΔTb = 0.026 °C 1) 0.050 mol kg-1 NaCl Diff: 1     Type: MA     Var: 1     Page Ref: 12.6 2) 0.050 mol kg-1 C6H12O6 (aqueous) Diff:.
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81) Which of the following reactions would you predict to have the largest orientation factor? A) NOF(g) + NOF(g) → 2NO(g) + F2(g) B) Br2(g) + H2C=CH2(g) → H2BrC-CBrH2(g) C) NH3(g) + BCl3(g) → H3N-BCl3(g) D) H(g) + Cl(g) → HCl(g) E) All of these reactions should have nearly identical orientation factors. 82) Which rate law.
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Short Answer Questions 1) What happens to the concentration of reactants and products during a chemical reaction? 2) What is the difference between average reaction rate and instantaneous reaction rate? 3) Explain how the order of a reaction can be determined. 4) Define half-life. 5) Define activation energy. .
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61) How many half-lives are required for the concentration of reactant to decrease to 12.5% of its original value? A) 3 B) 1 C) 1.75 D) 2.75 E) 2 62) How many half-lives are required for the concentration of reactant to decrease to 1.56% of its original value? A) 6 B) 5 C) 7 D) 6.5 E) 7.5 63) If the concentration.
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Matching Questions Match the following. A) reaction will favour formation of reactants B) reaction has a larger amount of products than reactants C) reaction favours formation of more products D) reverse reaction is favoured E) reaction does not strongly favour reactants or products F) reaction is at equilibrium 1) K << 1 Diff: 1     Type: MA     Var: 1     Page.
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31) Parts per billion requires a multiplication factor of ________. A) 10-6 B) 10-3 C) 103 D) 106 E) 109 32) Which of the following concentration units are temperature dependent? A) mole fraction B) molality C) mass percent D) molarity E) None of the above 33) Identify the colligative property. A) vapour pressure lowering B) freezing point depression C) boiling point elevation D) osmotic pressure E) All.
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21) Which of the following equilibria represents the second ionization step of H3PO4? A) H3PO4(aq) + H2O(l) ? H2PO4-(aq) + H3O+(aq) B) H3PO4(aq) + 2H2O(l) ? HPO42-(aq) + 2H3O+(aq) C) H2PO4-(aq) + H2O(l) ? HPO42-(aq) + H3O+(aq) D) HPO42-(aq) + H2O(aq)? PO43-(aq) + H3O+(aq) E) H3PO4(aq) + 3H2O(l) ? PO43-(aq) + 3H3O+(aq) 22) Which of the.
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Matching Questions Match the following. A) activation energy B) half-life C) reaction order D) rate constant E) frequency factor 1) k Diff: 1     Type: MA     Var: 1     Page Ref: 13.3 2) n, in Rate = k[A]n Diff: 1     Type: MA     Var: 1     Page Ref: 13.3 3) t1/2 Diff: 1     Type: MA     Var: 1     Page Ref: 13.4 4) Ea Diff: 1     Type: MA     Var: 1    .
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61) Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of SO2(g). 2SO2(g) + O2(g) ? 2SO3(g) Kc = 1.7 × 108 M-1 [SO3]eq = 0.0034 mol L-1[O2]eq = 0.0018 mol L-1 A)  2.8 × 1013 mol L-1 B)  1.88 mol L-1 C) 6.1 × 10-6 mol.
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11) The isomerization of methylisonitrile to acetonitrile CH3NC(g) → CH3CN(g) is first order in CH3NC. The rate constant for the reaction is 9.45 × 10-5 s-1 at 478 K. The half-life of the reaction when the initial [CH3NC] is 0.030 mol L-1 is ________ s. A) 1.06 × 104 B) 5.29 × 103.
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  Multiple Choice Questions 1) Which of the following statements is correct? A) When K >> 1, the reverse reaction is favoured and essentially goes to completion. B) When K << 1, the forward reaction is favoured and the reverse reaction does not proceed to a great extent. C) When K ≈ 1, neither the.
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Algorithmic Questions 1) The decomposition of dinitrogen pentoxide is described by the chemical equation 2N2O5(g) → 4NO2(g) + O2(g). If the rate of disappearance of N2O5 is equal to 1.60 mol min-1 at a particular moment, what is the rate of appearance of NO2 at that moment? A) 0.800 mol min-1 B) 1.60 mol.
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101) Choose the aqueous solution with the highest vapour pressure. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable. A) 0.50 mol kg-1 C3H8O3 B) 0.50 mol kg-1 C2H6O2 C) 0.50 mol kg-1 C6H12O6 D) 0.50 mol kg-1 C12H22O11 E) They all have about the same vapour.
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11) Which of the following is a Bronsted-Lowry acid? A) NH4+ B) CH4 C) NH2- D) NH3 E) Br2 12) Which of the following is a Bronsted-Lowry base? A) CH4 B) HCN C) NH3 D) Cl2 E) B2H6 13) Which of the following species is amphoteric? A) CO32- B) HCl C) NH4? D) HPO42- E) NaOH 14) What is the conjugate acid of HCO3?? A).
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31) Express the equilibrium constant for the following reaction: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g) A) Kc = B) Kc = [H2][NaOH]-2 C) Kc = D) Kc = [H2][NaOH]2 E) Kc = 32) Express the equilibrium constant for the following reaction: KClO3(s) ? KClO(s) + O2(g) A) Kc = B) Kc = [O2]-1 C) Kc =.
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21) Without performing complex calculations, determine the order of a reaction that has the following initial rates for the specified starting concentration: A) zero order B) first order C) second order D) third order E) impossible to determine 22) Without performing complex calculations, determine the order of a reaction that has the following initial rates for.
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  Multiple Choice Questions 1) Which of the following is a general property of an acid? A) Acids have sour taste. B) Acids are not able to dissolve metals. C) Acids turn red litmus paper blue. D) Acids leave blue litmus paper unchanged. E) All acids are dense liquids. 2) Which of the following is a general property.
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81) Consider the following reaction at equilibrium. What effect will adding some C have on the system? CO2(g) + C(graphite) ? 2CO(g) A) No effect will be observed since C is not included in the equilibrium expression. B) The equilibrium constant will decrease. C) The reaction will shift to the left in the direction.
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