Assuming that the gas becomes saturated with benzene vapor and that the total gas volume and temperature remain constant, what is the vapor pressure of the benzene in torr?

87.07 torr

Explanation:

n:7.7059 g-5.9203 g= 1.7856 g

Molar mass of benzene = 78.11g/mol

n=1.7856 g /78.11g/mol= 0.023 mol

T= 273 + 28 = 301 K

PV=nRT.

Weget

P=nRT/V

P=(0.023 mol x 8.3 J/molK x 301 K) / 0.00495m3= 11608. 3Pa= 87. 07 Torr

87. 07 Torr

answer seismograph;