Chapter Five Extra Practice

Chapter Five Extra Practice - Chapter Five Extra Practice...

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Chapter Five Extra Practice This material was not covered in class, and you are not responsible for it on the next exam. This is simply for your knowledge and practice. 1. Make the following conversions: a) 0.357 atm to torr 271 torr b) 6.6 x 10 -2 torr to atm 8.7 x 10 -5 atm 2. Calcium carbonate, CaCO 3 (s), decomposes upon heating to give CaO( s ) and CO 2 ( g ). A sample of calcium carbonate is decomposed, and the carbon dioxide is collected in a 250 mL flask. After the decomposition is complete, the gas has a pressure of 1.3 atm at a temperature of 31ºC. How many moles of CO 2 gas were generated? 0.013 mol CO 2 3. A flashbulb contains 2.4 x 10 -4 mol of O 2 gas at a pressure of 1.9 atm and a temperature of 19 ºC. What is the volume of the flashbulb in cubic centimeters? 3.0 cm 3 4. A sample of argon gas is confined to a 1.00 L tank at 27.0ºC. The pressure in the tank is 4.15 atm. The gas is allowed to expand into a larger vessel. Upon expansion, the temperature of the gas drops to 15.0ºC, and the pressure drops to 655 torr. What is the final volume of the gas?
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This note was uploaded on 07/07/2009 for the course CHEM 1310 taught by Professor Cox during the Spring '08 term at Georgia Institute of Technology.

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Chapter Five Extra Practice - Chapter Five Extra Practice...

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