hw2 - sakerwalla (hs9229) – H02: Gas Laws – mccord –...

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Unformatted text preview: sakerwalla (hs9229) – H02: Gas Laws – mccord – (50960) 1 This print-out should have 23 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A gas is enclosed in a 10.0 L tank at 1200 mm Hg pressure. Which of the following is a reasonable value for the pressure when the gas is pumped into a 5.00 L vessel? 1. 2400 mm Hg 2. 24 mm Hg 3. 0.042 mm Hg 4. 600 mm Hg 002 10.0 points A sample of gas in a closed container at a temperature of 88 ◦ C and a pressure of 3 atm is heated to 358 ◦ C. What pressure does the gas exert at the higher temperature? Answer in units of atm 003 10.0 points If I have 44.8 liters of nitrogen gas at standard temperature and pressure, how much will it weigh? 1. 56 g 2. 44.8 g 3. 56 u 4. 28 kg 5. 28 g 004 10.0 points At 80.0 ◦ C and 12.0 Torr, the density of cam- phor vapor is 0 . 0829 g · L − 1 . What is the molar mass of camphor? 1. 3490 g · mol − 1 2. 20 . 3 g · mol − 1 3. 243 g · mol − 1 4. 34 . 5 g · mol − 1 5. 152 g · mol − 1 005 10.0 points What is the density of nitrogen gas at STP? 1. 1.25 g/L 2. 2.50 g/L 3. 4.00 g/L 4. 0.625 g/L 5. 0.500 g/L 006 (part 1 of 3) 10.0 points A chemist has synthesized a greenish-yellow gaseous compound that contains only chlorine and oxygen and has a density of 7.71 g/L at 36.0 degrees Celsius and 2188.8 mm Hg....
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This note was uploaded on 09/27/2011 for the course MATH 408K taught by Professor Millburn during the Spring '11 term at The University of Texas at San Antonio- San Antonio.

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hw2 - sakerwalla (hs9229) – H02: Gas Laws – mccord –...

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