In order to prepare a 24.0-liter volume (under ambient conditions) of chlorobenzene gas standard (C6H5Cl; liquid density =1.11g/cm3) at 50ppmv using a pre-evacuated 6.00-liter canister at 756 torr and 18C, (a) what volume of the 98.6% pure chlorobenzene liquid must be injected into the canister and (b) what is the final pressure the canister containing the chlorobenzene must be pressurized to with ultrahigh purity nitrogen gas? The canister is equipped with a differential pressure gauge measuring the pressure in "psig" unit. ( 8 points)