Question

calculate no. of moles in 350cm3 of co2 at 273k and 2 atm pressure

Answer 1

350cc =0.35L
T=273K
R=8.3244 
use PV=nRT 
Substituting the value and calculating for the value of n 
we get n = 3.08 x 10-4.
I hope it helps u.

Answer 2

350cc
=0.35L
T=273K
R=8.3244
use PV=nRT
(Substituting the values) and calculating for the value of n
we get n = 3.08 x 10-4.
hope answer is satisfied to u