An air$-$conditioning unit takes in $9\mathrm{.}4$ lb$/$min of air. The intake air is at $75$o F and $72\%$ humidity. The intake air is cooled to $60$o F by the air conditioner. Some of the vapor in this air condenses and is removed and rejected outside. The cooled air is returned to the room. The evaporator of the air conditioner begins with refrigerant $134$a at a quality of $35\%$ at $40$o F$.$ How much water vapor condenses and is removed from the system per minute? Answer in lb$.$