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OpenStudy (lukecrayonz):
What is the mass of 1 mole of O2? What is the mass of 1 molecule of O2?
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OpenStudy (anonymous):
Oxygen has a n atomic weight of 16 amu, ergo a mole of O_2 has a mass of 32g, and a molecular weight of 32 amu.
OpenStudy (lukecrayonz):
So just 32?
OpenStudy (lukecrayonz):
xishem i have a new one for you:D
OpenStudy (lukecrayonz):
What is the density of O2 at STP?
OpenStudy (lukecrayonz):
And of course STP = volume used, 1 mol any gas = 22.4
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OpenStudy (anonymous):
d=MM(P/RT) Ideal gas law.
OpenStudy (lukecrayonz):
o.O what.
OpenStudy (anonymous):
1 mole. of O2 = 32g. 1 mole. at STP occupies 22.4L. Density = Mass / Volume. Density of O2 at STP = 32g / 22.4L = 1.43g/L = 1.43kg/m³
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