Exam 1 - CHEMISTRY 116 Exam 1 Dr. T.R Chigwada July 12,...

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CHEMISTRY 116 Exam 1 Dr. T.R Chigwada July 12, 2007 An optical scoring machine will grade this examination. The machine is not programmed to accept the correct one of two or more sensed answers and will not sense answers that are lightly marked. Mark your sheet carefully with a No. 2 soft lead pencil and erase any undesired marks COMPLETELY . Avoid making any extraneous marks on the answer sheet other than the information mentioned below. On the answer sheet: 1. Print your name in the space for NAME (last name first, CIRCLE your last name). 2. In the space marked SUBJECT write Chem 116. 3. In the space marked TEST NO. write Exam 1. 4. In the space DATE write Summer 5. In the space marked PERIOD write Chigwada. 6. Check to see that you have 21 examination questions, a periodic table, and a scantron. Hand in only the answer sheet!! Useful Equations and Constants: R = 0.08206 L atm/mol K = 8.314 J/mol K 1 atm = 760 torr = 760 mm Hg Relax and Good Luck !!!!!
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CaCl 2 contains 0.159 grams of solute per liter of solution. It is fully dissociated. What is the osmotic pressure, in torr , at 20.0 °C ? A) 1.79 torr B) 3.49 torr C) 23.2 torr D) 78.5 torr E) 2.65 x 10 3 torr 2. Which one of the following acids is NOT a known strong acid ? A) HBr( aq ) B) HCl( aq ) C) HClO 3 ( aq ) D) HF( aq ) E) HI( aq ) 3. A solution is prepared by mixing 0.3355 moles of NaNO 3 with 235.0 g of water . What is the molality of the solution? A) 0.6474 m B) 0.7004 m C) 1.320 m D) 1.428 m E) 1.545 m 4. Given the following set of solutions: A: aqueous sodium perchlorate B: aqueous methyl alcohol C: aqueous glucose D: aqueous calcium chloride E: aqueous nickel sulfate Which of these solutions are electrolyte solutions? A)
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This note was uploaded on 04/26/2008 for the course CHEM 116 taught by Professor Chigwada during the Summer '07 term at WVU.

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Exam 1 - CHEMISTRY 116 Exam 1 Dr. T.R Chigwada July 12,...

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