U-M CHEM 260 - Sample EXAM 1 (6 pages)

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Sample EXAM 1



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Sample EXAM 1

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Pages:
6
School:
University of Michigan
Course:
Chem 260 - Chemical Principles

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Chem 260 261 First Exam 2 12 01 Sample Name 1 Score This exam consists of 14 multiple choice questions worth 3 pts each 3 short answer questions worth 10 pts each and 2 problems worth 14 pts each BUDGET YOUR TIME WISELY This exam has 13 pages including the cover page nine pages of questions two information sheets and a blank scratch sheet Multiple Choice Answers 1 5 9 13 2 6 10 14 3 7 11 4 8 12 SCORE Indicate the Letters for Questions 15 and 16 below Scores 1 14 42 15 10 15 10 15 10 16 14 16 14 Total 100 Name Chem 260 261 First Exam 2 12 01 Sample 2 Multiple Choice 42 pts 14 questions Choose the letter corresponding to the best single answer for each question Put your answers in the numbered boxes on the cover sheet of this exam SAMPLE QUESTIONS 1 How many rotational degrees of freedom does butane possess a 2 b 3 c 5 d 14 e 42 f 36 g 37 h 1 2 In which spectral region would you expect to observe valence electronic transitions a ray b X ray c UV e Infrared f Microwave g Radio frequency d Visible 3 Which of the following forces are shortest range a Dipole Dipole Forces b Repulsive forces c London Dispersion Forces d Coulomb Forces Name Chem 260 261 First Exam 2 12 01 Sample 3 15 Short Answer 30 points In the space available answer 3 of the following 5 questions Indicate the questions you want graded on the cover sheet Use complete sentences Correct answers expressed in poor grammar will be docked 1 point Use equations and diagrams where helpful or required Each question is worth 10 points SAMPLE QUESTIONS A Consider a molecular orbital picture of MgH If MgH is ionized to form MgH what changes do you expect in the bond length and the vibrational frequency Why B Describe hydrogen bonding and explain why it is an important and unique interaction contrasting it with other Van der Waals interactions Give two examples illustrating the importance of hydrogen bonding Name Chem 260 261 First Exam 2 12 01 Sample 4 16 28 pts In the space available solve 2 of the following 3



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