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Heliox is a helium-oxygen mixture that may be used in scuba tanks for divers working at...

Heliox is a helium-oxygen mixture that may be used in scuba tanks for divers working at great depths. It is also used medically as a breathing treatment. A 8.25-L tank holds helium gas at a pressure of 1793 psi. A second 8.25-L tank holds oxygen at a pressure of 476.5 psi. The two gases are mixed in a 8.25-L tank. If the temperature remains the same throughout the process, what is the pressure of the gas mixture in the tank? Assume ideal gas behavior.

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Answer #1

Number of moles

For helium,

For oxygen,

Total number of moles

The pressure of gas mixture in the tank

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