Homework Help: chem

Posted by Stephanie on Saturday, February 23, 2013 at 10:06pm.

how many moole of helium gas is needed to pressurize an evacuated 25.0L tank to a pressure of 120 atm at 25.0 C ?

chem - DrBob222, Saturday, February 23, 2013 at 10:10pm
Use PV = nRT and solve for n. Don't forget to change T to kelvin.

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