A diver breathes a heliox mixture with an oxygen mole fraction of 0.052. What must the total pressure be for the partial pressure of oxygen to be 0.22 atm?
A diver breathes a heliox mixture with an oxygen mole fraction of 0.052. What must the...
3) A breathing mixture of oxygen and nitrogen is prepared for a scuba diver who is going to descend 400 ft below the ocean surface. At that depth, the diver breathes a gas mixture that has a total pressure of 8.00 atm. If the partial pressure of the oxygen in the tank at that depth is 1200 mmHg, what is the partial pressure, in atmospheres, of the nitrogen in the breathing mixture?
A scuba diver is at a depth of 445 m, where the pressure is 45.5 atm. What should be the mole fraction of O2 in the gas mixture the diver breathes in order to have the same partial pressure of oxygen in his lungs as he would at sea level? Note that the mole fraction of oxygen at sea level is 0.209.
A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium. What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9.0 atm?
The partial pressure of oxygen gas in our atmosphere is 0.21 atm. This is the partial pressure at which human lungs have evolved to be able to breathe this gas. A SCUBA diver, will thus still have to breath oxygen at this pressure even when diving way down in the water. If a mixture of helium and oxygen (heliox) in his tank is at a pressure of 7.00 atm, what must the partial pressure be of helium to keep the...
In a mixture of gases with a total pressure of 15.0 bar, oxygen has a mole fraction of 0.41. What is the partial pressure of oxygen?
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 7.25 L tank holds helium gas at a pressure of 2206 psi. A second 7.25 L tank holds oxygen at a pressure of 586.5 psi. The two gases are mixed in a 7.25 L tank. If the temperature remains the same throughout the process, what is the pressure of the gas mixture...
A mixture of gas is two moles of hydrogen and four moles of oxygen was a total pressure of 3atm. a. calculate the mole fraction of the hydrogen in the mixture. b. calculate the partial pressure in atm of hydrogen and oxygen gas in the mixture. XH2= PH2= PO2=
QUESTION 1 0.5 points Save Answer A mixture of He, Ne and Ar has a pressure of 7.85 atm. If the Ne has a mole fraction of 0.47 and Ar has a mole fraction of 0.23, what is the pressure of He? 5.5 atm 4.2 atm O 3.7 atm 2.4 atm 1.8 atm QUESTION 2 0.5 points Save Answer A vessel contains a mixture of 30.3 grams of H2 (g) and 13.6 grams of CH4. If the total pressure inside...
Mole fraction of O2 = 571 Correct The mole fraction is the ratio of the number of moles of a given component in a mixture to the total number of moles in the mixture. The mole fractions can be represented in terms of pressures The total pressure PTOTAL = 0.180 atm +0.240 atm = 0.420 atm The mole fraction of CH4 in the mixture PCH 0.180 atm 0.420 atm = 0.429 PTOTAL Since it is the mixture of two gases,...
309 2 A mixture of methane and helium is placed in a 2.0L flask at 27°C. The partial pressure of CH, is 0.72 atm and the partial pressure of helium is 0.22 atm. What is the mole fraction of methane?