find the dry volume at STP of 500 mL of nitrogen gas measured over water at 15 degree C and 680 mmHg. the water vapor exerts a partial pressure of 12.8 torr at this temperature ( vapor pressure).

Answer 1

(P1V1/T1) = (P2V2/T2)
P1 = 680-12.8 = ?
T1 = 15 + 273
V1 = 500 mL
P2, and T2 are STP. Solve for V2