key5 - Chemistry 211 Fall 2010 Test 5 Name: _ Please Print...

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P r e s s u r e Temperature A Chemistry 211 Name: __________________________ Fall 2010 Please Print Test 5 Multiple Choice: (4 points each. Put answers in left margin as capital letters .) 1. Which of the following hybridization schemes is normally involved in a carbon-carbon triple bond? A) sp B) sp 2 C) sp 3 D) sp 3 d E) sp 3 d 2 2. What is the formal charge on nitrogen in N 2 O 4 ? A) -2 B) -1 C) 0 D) +1 E) +2 3. What is the volume of 48.0 g of O 2 gas at a temperature of 16 ºC and a pressure of 0.985 atm? A) 2.00 L B) 36.1 L C) 72.2 L D) 108.3 L E) 1120 L 4. Place the following gases in order of decreasing average molecular speed: CO, SF 6 , H 2 S. A) CO > SF 6 > H 2 S C) SF 6 > CO > H 2 S E) H 2 S > SF 6 > CO B) CO > H 2 S > SF 6 D) SF 6 > H 2 S > CO 5. The lowest pressure ever measured was 652 mm, set on Oct. 12, 1979, during Typhoon Tip in the western Pacific Ocean. What is this pressure in atmospheres? A) 0.652 atm B) 0.858 atm C) 1.00 atm D) 1.16 atm E) 1.53 atm 6. The additional energy removed from a gas to cause it to liquefy is called its A) Heat of formation C) Heat of condensation E) Heat of liquefaction B) Lattice energy D) Heat of vaporization 7. In the drawing above:
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key5 - Chemistry 211 Fall 2010 Test 5 Name: _ Please Print...

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