See the answer below.
Work Step by Step
From the ideal gas law: $P.V=n.R.T$ $n=5.0\ L×1.1\ atm/0.082057\ L.atm/mol.K/(25+273)\ K/$ $n=0.225\ mol$ $m=0.225\ mol×4.00\ g/mol=0.90\ g$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.