Question

You fill a rigid steel cylinder that has a volume of 20.0 L with nitrogen gas to a final pressure of
2.00 x 104 kPa at 28°C. Calculate the number of moles for the nitrogen gas, as described by the ideal gas law

Answer 1

PV=nRT

n = PV/RT

R=8.314 L⋅Pa⋅K⁻¹⋅mol⁻¹

n (N₂) = (2 x 10⁴ x 10³ x 20) / (8.314 x (28+273)) = 159 839 mol