A stream consisting of two organic chemicals: (1) benzene (C₆H₆) and (2) toluene (C₇H₈), enters a separation column. The total mass flow rate of the stream is 10,000 lb_m/hr. The mass percent of benzene in the stream is 40%. Determine the following for the stream:
a. The mass flow rate of benzene
b. The mass flow rate of toluene
c. The molar flow rate of toluene
d. The total molar flow rate of the stream
e. The mole fraction of benzene