exam3 2002 fall

exam3 2002 fall - Chemistry 161SG Exam III November 8, 2002...

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SG 161: EXAM III V1 1 FALL “02” Chemistry 161SG Exam III November 8, 2002 Student Name: _____________________ Recitation Section Number: ____ Recitation Instructor: _________________________ The exam has 25 questions for credit and an additional one to check the color of your exam booklet. Please answer all 26 questions on the OpScan sheet. There is no penalty for guessing. At the end of the 80-minute exam period, please hand in only this top sheet and your OpScan form. If you finish early, please do not disturb your fellow students. A proctor will check your picture-ID, OpScan form and signature during the exam. Exam scores and an exam curve will be posted as soon as possible. ON THE OpScan FORM: (Use a Number 2 Pencil or Darker) (1) SIGN your name across the TOP of the form. (2) code only the following information: [ blacken circles] (a) Your Name . . . LAST NAME FIRST [ blank space between last and first names ] (b) Your SOCIAL SECURITY NUMBER [Start under Box A and continue to Box I ] (c) Your RECITATION SECTION NUMBER (Boxes ) [Sections R1=51, R3=53, R4=54, R5=55] (d) Your EXAM FORM NUMBER (Box P ) Your EXAM FORM is: c See last pages of exam for physical constants, periodic table, and other information.
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SG 161: EXAM III V1 2 FALL “02” 1. Which of the following frequencies corresponds to light with the longest wavelength? A. 3.00 x 10 13 s -1 B. 4.12 x 10 5 s -1 C. 8.50 x 10 20 s -1 D. 9.12 x 10 12 s -1 E. 3.20 x 10 9 s -1 2. The heat combustion of acetylene, C 2 H 2 (g), at 25 ° C, is -1299 kJ/mol. At this temperature, H f ° values for CO 2 (g) and H 2 O( λ ) are -393 kJ/mol and -286 kJ/mol, respectively. Calculate H f ° of acetylene. A. 2376 kJ/mol B. 625 kJ/mol C. 227 kJ/mol D. -625 kJ/mol E. -346 kJ/mol 3. Which one of the following statements is false ? A. Ionization energy decreases down a group. B. The size of the atom increases down a group. C.
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exam3 2002 fall - Chemistry 161SG Exam III November 8, 2002...

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