Project #29537 - CHEMISTRY ASSIGNMENT

Chemistry: An Introduction to General, Organic, and Biological Chemistry (11th Edition) 

Text Ch.7, Study Checks 7.3, 7.4, 7.5, 7.6 (presentation as worked Sample Problems.)

 

7.3- In an underground gas reserve, a bubble of methane gas (CH4) has a volume of 45.0mL at 1.60atm. What volume, in milliliters, will it occupy when it reaches the surface, where the atmospheric pressure is 745mmHg, if there is no change in the temperature or amount of the gas?

7.4- A mountain climber with a body temperature of 37oC inhales 486mL of air at a temperature of -8oC. What volume, in milliliters, will the air occupy in the lungs, if the pressure and amount of gas do not change?

7.5- In a storage area where the temperature has reached 55oC, the pressure of oxygen gas in a 15.0L steel cylinder is 965 torr. To what temperature in degrees Celsius, would the gas have to be cooled to reduce the pressure to 850.0 torr?

 

7.6- A weather balloon is filled with 15.0L of helium at a temperature of 25oC and a pressure of 685mmHg. What is the pressure (mmHg) of helium in the balloon in the upper atmosphere when the temperature is -35oC and the balloon becomes 34.0L, if the amount of He does not change?

Subject Science
Due By (Pacific Time) 05/02/2014 12:00 pm
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