TAMU CHEM 102 - efd-f10 (13 pages)

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Lecture Notes


Pages:
13
School:
Texas A&M University
Course:
Chem 102 - Fundamentals of Chemistry II
Fundamentals of Chemistry II Documents

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NAME Block Print CHEMISTRY 102 FINAL EXAM FALL 2010 FORM D Section 502 DR KEENEY KENNICUTT Directions 1 Put your name on PART 1 and your name and signature on PART 2 of the exam where indicated 2 Sign the Aggie Code on PART 2 of this exam 3 Each multiple choice question is actually 2 questions on your scanning sheet If you are sure of an answer put the same answer down for both questions for 5 pts If you cannot decide between two answers put your best answer down for the first odd question and the other answer down for the second even question If you get the first one correct you ll get 3 pts if you get the second one correct you ll get 2 pts If there is an ambiguous multiple choice question use the last page to explain your answer 4 Do NOT write on the envelope 5 When finished put everything in the envelope and wait to be excused At the table take everything out of the envelope You can pick up the multiple choice part with the answers outside my office after the exam 6 There are a total of 60 multiple choice questions 30 actual questions plus 20 pts free response PART 1 Which one of the following combinations cannot produce a buffer solution 1 2 a HNO2 and NaNO2 b NH3 and NH4 2SO4 d NH3 and NH4Br e HCN and NaCN c HClO4 and NaClO4 3 4 The rate law for the chemical reaction 2ClO2 aq 2OH aq ClO3 aq ClO2 aq H2O l has been determined experimentally to be Rate k ClO2 2 OH The reaction order with respect to the hydroxide ions is a 3 b 2 c 1 d k OH 2 e k ClO2 2 OH 5 6 Which is the correct Kc expression for the equilibrium 2C s O2 g 2 CO a Kc 2 C O 2 2 CO d Kc O 2 C 2 O2 b Kc CO 2 2CO g CO 2 c Kc C 2 O 2 O2 e Kc CO 2 Which of the following statements is FALSE 7 8 a S is a state function b c d e A reaction is spontaneous if Suniverse decreases Endothermic processes are those that absorb heat At absolute 0 K the entropy of a pure perfect crystalline substance is zero The system s enthalpy alone does not determine the spontaneity of a reaction Keeney Kennicutt 2010 D1 The best



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