if 10.0L of neon gas exerts a pressure of 125psi at 373K, what is the number of moles of gas?

Question

I don't know how to set this up. I am using ideal gas law N=PV/RT but my answer is not matching.

I converted the 125psi to 8.50atm

N= 8.50atm*10.0L/1 k * 373k*1 mol/1 atm * 0.0821 L

Where am I going wrong?

Answer 1

N=PV/RT=8.5*10/(.00821*373)=about 27 moles

Maybe you have temp in the numberator?