question for chemistry

Question

How many moles of carbon dioxide gas are in a 1.19 L sample that is at standard pressure and 240 K.

Answer 1

PV=nRT

P=1 atm (standard pressure)

V=1.19 L

n=? mol

R=0.0821 L-atm/mol-K

T=240 K

^PV/_RT=n

Solve for n.