Ch.10 - Gases
Chapter 10, Problem 71
At an underwater depth of 100 m, the pressure is 1.106 MPa. What should the partial pressure of oxygen be in the diving gas for the mole fraction of oxygen in the mixture to be 0.21, the same as in air?
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Related Practice
Textbook Question
A piece of dry ice (solid carbon dioxide) with a mass of 20.0 g is
placed in a 25.0-L vessel that already contains air at 50.66 kPa
and 25 °C. After the carbon dioxide has totally sublimed, what
is the partial pressure of the resultant CO2 gas, and the total
pressure in the container at 25 °C?
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Textbook Question
A sample of 5.00 mL of diethylether 1C2H5OC2H5,
density = 0.7134 g>mL2 is introduced into a 6.00-L vessel
that already contains a mixture of N2 and O2, whose partial
pressures are PN2 = 21.08 kPa and PO2 = 76.1 kPa. The temperature
is held at 35.0 °C, and the diethylether totally evaporates.
(b) Calculate the total pressure in the container.
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Textbook Question
A rigid vessel containing a 3:1 mol ratio of carbon dioxide
and water vapor is held at 200 °C where it has a total pressure
of 202.7 kPa. If the vessel is cooled to 10 °C so that all of the
water vapor condenses, what is the pressure of carbon dioxide?
Neglect the volume of the liquid water that forms on cooling.
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Textbook Question
A quantity of N2 gas originally held at 531.96 kPa pressure
in a 1.00-L container at 26 °C is transferred to a 12.5-L container
at 20 °C. A quantity of O2 gas originally at 531.96 kPa
and 26 °C in a 5.00-L container is transferred to this same
container. What is the total pressure in the new container?
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Textbook Question
A sample of 3.00 g of SO21g2 originally in a 5.00-L vessel at 21 °C is transferred to a 10.0-L vessel at 26 °C. A sample of 2.35 g of N21g2 originally in a 2.50-L vessel at 20 °C is transferred to this same 10.0-L vessel. (a) What is the partial pressure of SO21g2 in the larger container?
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Textbook Question
Determine whether each of the following changes will increase, decrease, or not affect the rate with which gas molecules collide with the walls of their container: (a) increasing the volume of the container (b) increasing the temperature (c) increasing the molar mass of the gas
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