What mass of potassium nitrate is needed to generate 233.0 L of gas, composed of 139.0 L of N2 and 94.0 L of O2 at 0.920 atm and 291 K, using these two reactions?

A) 325.6 g
B) 412.8 g
C) 489.2 g
D) 563.5 g