What amount (moles) of carbon dioxide gas is present in a compressed cylinder (900 mL) at 300 kPa at 25.0 C?

Using ideal gas law...in metric units, thanks.

786 torr = 104658 Pa

900 mL = 0.0009 m3

22 C = 295.15 K

R = 8.314 J/K-mol

PV = nRT

n = PV / RT = 104658 x 0.0009 / 8.314 x 295.15 = 0.0384 mol