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# A 0.487 gram sample of He occupies 2.00L a 2.0atm. The gas then cooled. At what temprature in celsius would te gas occupy 3.0L at 1.0atm?

A 0.487 gram sample of He occupies 2.00L a 2.0atm. The gas then cooled. At what temprature in celsius would te gas occupy 3.0L at 1.0atm? He=4 atomic wt. I have two questions peding and my three questions today! I have my Chem final next Tuesday. Please Help!

A 0.487 gram sample of He occupies 2.00L a 2.0atm. The gas then cooled. At what temprature
in celsius would te gas occupy 3.0L at 1.0atm? He=4 atomic wt.
Number of moles= 0.487/4 = 0.12175
PV =...

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