find the mass of the vapour and liquid product stream and also the compositions of each of them with the aid of the diagram below

$833\mathrm{.}0$ kg$/$h$17\mathrm{.}3\%$ Wlw propane$22\mathrm{.}7\%$ W$/$w iso$-$butane$38\mathrm{.}5\%$ W$/$w propylene$21\mathrm{.}5\%$ W$/$w benzeneFlashVesselvapour product stream$24\mathrm{.}1\%$ W$/$w propaneliquid product stream$14\mathrm{.}8\%$ W$/$w propane$25\mathrm{.}2\%$ Ww iso$-$butane$30\mathrm{.}5\%$ Wlw propylene$29\mathrm{.}2\%$ Ww benzene$3$