A wet gas is produced through a two$-$stage separator sv Separator conditions are $580$ psia and $95\backslash$deg F$.$ The stock tank $80\backslash$deg F$.$ Gas$-$oil ratios are $98,835$ scf$/$STB and $408$ scf$/$STB$.$ Stor tank liquid is $55\mathrm{.}4\backslash$deg API. Compositions of the surface streams are given below. Calculate the composition of the reservoir gas. Component Composition, separator gas, mole fraction Composition, stock$-$tank gas, mole fraction Composition, stock$-$tank liquid, mole fraction $0\mathrm{.}88140\mathrm{.}07300\mathrm{.}02970\mathrm{.}00540\mathrm{.}00450\mathrm{.}00230\mathrm{.}00170\mathrm{.}00160\mathrm{.}00040\mathrm{.}47950\mathrm{.}17690\mathrm{.}17550\mathrm{.}04900\mathrm{.}04660\mathrm{.}02930\mathrm{.}02220\mathrm{.}01900\mathrm{.}00200\mathrm{.}00260\mathrm{.}00540\mathrm{.}01940\mathrm{.}01480\mathrm{.}01930\mathrm{.}03120\mathrm{.}02930\mathrm{.}09020\mathrm{.}7878(7+101\mathrm{.}00001\mathrm{.}00001\mathrm{.}0000$ Properties of heptanes plus of the stock$-$tank liquid Specific gravity Molecular weight $0\mathrm{.}779131$ lb$/$lb mole $7-13.$ Calculate the wet gas formation volume factor of the gas of Exercise $7-1$ when reservoir conditions are $6500$ psia and $225\backslash$deg F$.$