1. The problem statement, all variables and given/known data A can which is sealed of a volume 0.035m3 contains an ideal gas with a pressure of 150kPa, at a temperature of 350K. Calculate the gas density and the root mean squared speed of the gas molecules (P.S. the molecular mass is stated as 28) 2. Relevant equations r.m.s=sqrt(3kT/m) density=molar massxP/RxT 3. The attempt at a solution So before this I calculated the number of moles: (150x103)*(0.035)/(8.31*350)= 1.81 moles (3.s.f) The number of molecules: N=n*Na=(1.80....)*(6.023x1023)=1.09x1024 molecules (3.s.f) The mass of the gas (the molecular mass is stated as 28) mass=n*M=(1.80...)(28)=50.5g (3.s.f) For r.m.s, do I simply just have to put the mass I just calculated into the equation? For the density, do I just put the molar mass as 28? Thanks for any help in advance!