A distillation column unit is used to separate a binary liquid mixture containing $6$ mass $\%$ methanol and ethanol. The mixture is fed into a unit at a rate of $3500\frac{L}{h}$ an has a specific gravity of $0\mathrm{.}745.$ The overhead product leaving at the top of th distillation column contains $98$ mass $\%$ methanol, and the bottom product strea exiting the column contains $8$ mass $\%$ of the methanol fed to the column.

determine massflowrate and massfraction

draw labelle process?

flowratees at the overheard $?$