110_Sp10_ex3_A

110_Sp10_ex3_A - Chemistry 110 Name _______________________...

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Unformatted text preview: Chemistry 110 Name _______________________ Exam III Form A Section _______________________ April 5, 2010 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 3 Form A April 5, 2010 ---------------------------------------------------------------------------------------------------------------- 1. Which one of the following is most soluble in hexane? A. C 6 H 6 (benzene) B. CH 3 OH C. CH 3 CH 2 OH D. HCl E. KCl ---------------------------------------------------------------------------------------------------------------- 2. Which of the following are strong electrolytes? i. CH 3 COOH ii. NH 4 Cl iii. C 2 H 6 iv. Ca(OH) 2 v. HNO 3 A. iv and v only B. i, ii, iv and v only C. ii, iv and v only D. i, iv and v only E. i and iii only ---------------------------------------------------------------------------------------------------------------- 3. What kind of interactions are formed during the solvation process when CaBr 2 is dissolved in water? A. ionic bonds B. ion-dipole forces C. dipole-dipole forces D. hydrogen bonds E. covalent bonds ---------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------- 4. A sample of ammonia gas has a volume of 3.5 L at a pressure of 1.68 atm. The gas is then compressed to a volume of 1.35 L at constant temperature. What is the final pressure? A. 7.94 atm B. 0.36 atm C. 4.4 atm D. 0.65 atm E. The question cannot be answered without knowing the temperature....
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110_Sp10_ex3_A - Chemistry 110 Name _______________________...

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