Question

Oxygen has a molar mass of 32 g/mol. If 12 moles of oxygen are in a 0.1-m3 container with an rms speed of 480 m/s, what is the pressure of the gas?
I don't understand what I'm doing wrong Im using p=nM(vrms^2)/3V
and im getting 2.9E8?
someone pls explain

Answer 1

You need to divide the final answer by 1000, as the unit for molar mass is kg/mol rather than g/mol.
you should get 2.9x10^5

Answer 2

i have no idea bro