Using a packing bed absorber$,$ you wish to remove acetone from a gas stream of $10,000mo\frac{l}{h}.$ The inlet gas contains $2\mathrm{.}6$ mole percent acetone and the outlet gas stream can obtain no more than $0\mathrm{.}5$ mole percent acetone. Pure water is used at a rate of $8,000mo\frac{l}{h}$ as the solvent.

According to the given information above, $q,$ mole fraction of acetone in the pure water entering the packing bed absorber $?).$