Question

(R=0.082 L atm mol-1 K-1)

Calculate the pressure in atm, if 8.25 X 10 -2 mole gas occupies a volume of 255 mL at 115ºC.

Answer 1

$$pV = nRT$$

$$p = {nRT \over V}$$

$$p = {0.0825*0.082*388 \over 0.255} = 10.3 atm$$