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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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dreamingtruth dreamingtruth
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11 years ago
1) What is the pressure of a gas collected over water at an atmospheric pressure of 98.3 kPa?  The water vapor pressure is 15.8 kPa

2) Nitrox is a mixture of nitrogen and oxygen gases that allow sport divers to stay submerged longer.  If the total pressure in a scuba tank is 2500 psi and the pressure of the oxygen is 800 psi; what is the pressure of the nitrogen?

3) What is the pressure in a container, which contains nitrogen at 35.2 kPa and hydrogen at 75.9 kPa?
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#1
Educator
7 years ago
Quote from: dreamingtruth (11 years ago)
1) What is the pressure of a gas collected over water at an atmospheric pressure of 98.3 kPa?  The water vapor pressure is 15.8 kPa

82.5 kPa
wrote...
#2
Educator
7 years ago
Quote from: dreamingtruth (11 years ago)
2) Nitrox is a mixture of nitrogen and oxygen gases that allow sport divers to stay submerged longer.  If the total pressure in a scuba tank is 2500 psi and the pressure of the oxygen is 800 psi; what is the pressure of the nitrogen?

PO2 + PN2 = Ptotal = 2500 psi
PN2 = 2500 psi - 8 psi = 2492 psi
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