Fa09_ex2_A - Chemistry 110 Name _______________________...

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Unformatted text preview: Chemistry 110 Name _______________________ Exam II Form A Section _______________________ October 12, 2009 Signature _______________________ IMPORTANT : On the scantron (answer sheet), you MUST clearly fill your name , your student number , section number , and test form (white cover = test form A; yellow cover = test form B). Use a #2 pencil. There are 28 questions on this exam. Check that you have done all of the problems and filled in the first 28 bubbles on the scantron. The maximum score on this exam is 28 points. Your score will be reported in percents (max 100%). Exam policy This cover sheet must be signed and handed in with your answer sheet for your exam to count. Calculators with text-programmable memory are not allowed. Relevant data and formulas, including the periodic table, are attached at the end of this exam. Your grade will be based only on what is on the scantron form. The answer key will be posted on the web after the exam (under "Exam Schedule"). Hints As you read the question, underline or circle key words to highlight them for yourself. Avoid errors from "mis-reading" the question. Pay attention to units and magnitudes (decimal places) of numbers obtained from calculations. There is no penalty for guessing. CHEMISTRY 110 EXAM 2 Oct. 12, 2009 FORM A ----------------------------------------------------------------------------------------------------------- 1. What is the mass percent of oxygen in tetraethylene glycol, C 8 H 18 O 5 ? A. 45.2 % B. 55.2 % C. 8.2 % D. 27.2 % E. 41.2 % ----------------------------------------------------------------------------------------------------------- 2. Which of the following functional groups are found in tyrosine (shown below): I. Alcohol II. Aldehyde III. Carboxylic acid IV. Amine A. I, II B. I, II, IV C. I, III D. I, III, IV E. III, IV ----------------------------------------------------------------------------------------------------------- 3. What is the hybridization of the carbon atom indicated by the arrow? A. s B. sp C. sp 2 D. sp 3 E. sp 3 d ----------------------------------------------------------------------------------------------------------- OH H 2 N OH O----------------------------------------------------------------------------------------------------------- 4. Which of the following molecules has a net dipole moment? C C F H H H C C F H H F C C F F H H C C F F F F I II III IV A. I and II B. I and III C. II and III D. I, II, and IV E. I, III, and IV ----------------------------------------------------------------------------------------------------------- 5. What is the molecular geometry of SF 4 ?...
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Fa09_ex2_A - Chemistry 110 Name _______________________...

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