A sample of nitrogen gas stored in 4.0L container at 32°C exerts a pressure of 5.0 atm. What is the number of moles of nitrogen gas in the container?

1 Answer
Apr 15, 2016

Answer:

Approx. #0.8# #mol#.

Explanation:

#n=(PV)/(RT)# #=# #(5.0*cancel(atm)xx4.0*cancel(L))/(0.0821*cancel(L)*cancel(atm)*cancel(K^-1)*mol^-1xx305*cancel(K))# #=# #??*mol#

The only real difficulty with this question is the selection of a gas constant #R#. I think in most examinations, values of #R# will be given as supplementary problem.