Asked by Lisa

Determine the molecular formula of phosphorus.

phosphorus gas has a density of 0.617 g/L at 70 and 200 Celsius ...
Answered by Lisa
* at 790 torr not 70
Answered by DrBob222
70 what?
Use p*molar mass = density*R*T
Solve for molar mass, then
molar mass/30.97 = # P atoms/molecule.
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