e1-131-s11(1) - Exam 2 CHE 131 Spring 2011 Multiple Choice...

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Exam 2, CHE 131 Spring 2011 Multiple Choice On the Scantron form, bubble in the letter of the one choice that best completes the statement or answers the question. No credit will be given for multiple answers. ____ 1. The following is the neutralization reaction for hydrochloric acid and sodium hydroxide, HCl + NaOH NaCl + H 2 O What volume of 0.05 M HCl would be required to titrate 50.0 mL of 0.500 M NaOH? A. 50.0 mL B. 500.0 mL C. 250.0 mL D. 200.0 mL E. 100.0 mL ____ 2. When the following redox reaction is balanced, what is the coiefficient for the Bi 3+ ion? Mn 2+ + BiO 3 MnO 4 + Bi 3+ (in acidic solution) A. 5 B. 2 C. 1 D. 4 E. 3 ____ 3. Which of the following describes one way in which a real gas differs from an ideal gas? A. The molecules in a real gas have no kinetic energy. B. The molecules in a real gas exist only at STP. C. The molecules in a real gas occupy some space. D. The molecules in a real gas have no attractions for one another. E. The molecules in a real gas do not move in random motion. ____ 4. According to the postulates of the kinetic theory of gasses, the average speed of the molecules of a given gas is proportional to the A. square root of the absolute temperature B. reciprocal of the absolute temperature C. Celsius temperature squared D. absolute temperature squared E. absolute temperature
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____ 5. What is the partial pressure of nitrogen in a container that contains 2.0 mol of O 2 , 3.0 mol N 2 and 1 mol CO 2 , when the total pressure is 900 mmHg? A. 300 mm Hg B. 150 mm Hg C. 600 mm Hg D. 200 mm Hg E. 450 mm Hg ____ 6. If, at constant pressure, the absolute temperature of a flask equipped with a moveable piston is reduced to half its original absolute temperature, what must be the new volume? A. 1/2 the original volume
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This note was uploaded on 03/29/2012 for the course CHE 131 taught by Professor Kerber during the Spring '08 term at SUNY Stony Brook.

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e1-131-s11(1) - Exam 2 CHE 131 Spring 2011 Multiple Choice...

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