lecture 16 - Turn on Camptasia Recording! Office Hours this...

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Unformatted text preview: Turn on Camptasia Recording! Office Hours this week 1-2:30 Friday in the CRC. ... 1 The using of PRS in class helps me understand the material better. 1. Strongly agree 2. Agree 3. Strongly disagree 4. Disagree 5. Not applicable Which notes do you access most? 1. Lecture notes posted online before each class 2. 2 Only inked notes after each class 3. Inked notes plus flash movies of each lecture 4. Only flash movies of each lecture 5. Notes in advance, inked notes & flash movies after each lecture ... 2 What is the equation for the overall reaction? A. NH2Cl + NH3 + OCl- + OH- --> N2H4 + 2H2O B. NH3 + 2OCl- --> N2H5+ + H2O + OH- + 2ClC. 2NH3 + OCl- --> N2H4 + 2H2O + ClD. NH3 + OCl- + OH- --> N2H4 + H2O + ClE. 2NH3 + OCl- --> N2H4 + H2O + Cl... 3 For this proven reaction mechanism, what will be the rate equation? Fast, Equilibrium Slow NO2Cl NO2 + Cl NO2Cl + Cl NO2 + Cl2 A. A Rate = k'[NO2Cl] k [NO B. Rate = k'[NO2Cl][Cl] C. Rate = k'[NO2]2[Cl] D. Rate = k'[NO2Cl]2/ [NO2] E. Rate = k'[NO2Cl] 2 ... 4 What is the expression for the reaction quotient for this reaction? H2CO3(aq) + H2O(l) HCO3-(aq) + H3O+(aq) A. Q= [H2CO3] [H2O] [HCO3-] [H3O+] B. Q= [H2CO3] [H2O] [HCO3-] ... C. Q= [HCO3-] [H3O+] [H2CO3][H2O] D. Q= [HCO3-] [H3O+] [H2CO3] 5 Where can you measure Q & K? B A C D E ... 6 ProductProduct- or Reactant Favored ProductProduct-favored K>1 ... ReactantReactant-favored K<1 7 Butane Isobutane ... 8 Product or reactant favored? ... 9 The Meaning of K K comes from thermodynamics. See Chapter 19, page 929 G G < 0: reaction is __________favored __________favored favored fav G > 0: reaction is ________ favored If K > 1, then G is negative If K < 1, then G is positive ... 10 ... 11 A. 2.3 B. 4.7 C. 0.43 D. 0.21 E. 0.081 ... 12 2 NH3(g) N2(g) + 3 H2(g) If 8.39e-4 moles of NH3(g), 0.469 moles of N2, and 0.283 moles of H2 are at equilibrium in a 13.6 L container at 858 K, the value of the equilibrium constant is: A. 18.71 B. 8 x 10-3 C. 81.7 D. 118.7 E. 8.7 x 102 ... 13 ...
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