What pressure will be exerted by 0.650 mol of a gas at 30.0C if it is contained in a 0.700 L vessel?

I believe you need to use the ideal gas constant which is Pv=nRT and P is the pressure so if you solve for P you get P = (nRT) / v and you can then just plug in n = number of moles T=temp in kelvins v=volume in liters R = is a constant of. 08206 L*atm/K*mol