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I sent the re - design back to the city, but I complained that the separator they wanted was going to cost a lot of money and energy. So they sent me more requirements; in truth, I ' m not sure that the new requirements help me , or hurt me ! They added the requirement that my recycle stream contain 9 9 % of the acetone that was fed to my separator, and that the system maintains the 1 mass % acetone in the stream sent to the city's sewer system. Assume that the stream leaving Earle Hall is still 2 5 0 , 0 0 0 lbm every day, and is still 5 mass % acetone in water. What will the flowrate to the city's sewer system be , and what will be the mass % of acetone in the stream I recycle to Earle Hall ( i . e . , it won't still be 9 5 % like I wanted ) ?
Sagot :
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