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part a at standard temperature, a closed container of dry air contains 159.6 torr O2, 76.0...

part a

at standard temperature, a closed container of dry air contains 159.6 torr O2, 76.0 torr Ar, and 592.8 torr N2, what is the mole fraction of oxygen?

part b

the rate constant for the radioactive decay of 239Pu is 2.88*10^-5 yr^-1. what is the halflife of this isotope of plutonium?

part c

the vapor pressure of pure water is 17.54 torr at 20 degree celsius. what is the vapor pressure of water in a solution containing a mole fraction X=0.75 of a nonvolatile solute?

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